XBOXER XBC UNIT SIZES 10-65 WITH ECOSMART CONNECT CONTROL ... · XBOXER XBC UNIT SIZES 10 ... plate...

30. 11. 15. Leaflet Number 671710

FOR THE COMPLETE VENTILATION SOLUTION MA

DE IN THE UK

MADE IN THE U

KErPCOMPLIANT

2016

XBOXER XBCUNIT SIZES 10 - 65 WITH ECOSMART CONNECT CONTROL (CO)INSTALLATION, CONTROL DETAILS, OPERATING AND MAINTENANCE

GENERAL INDEX

029 2085 82002

PAGE

• INSTALLATION, OPERATING & MAINTENANCE INSTRUCTIONS 3 - 13

• DESCRIPTION OF CONTROL SOFTWARE STRATEGY 15 - 44

• ELECTRICAL DETAILS 45 - 47

• HARDWARE POSITIONS ON THE UNIT 48

• WIRING DIAGRAMS 49 - 61

• MAINTENANCE & SERVICE SCHEDULE 62

• CERTIFICATION 63

XBOXER XBC ECOSMART (CO) MODELS

3nuaire.co.uk

INDEX - INSTALLATION, OPERATING & MAINTENANCE INSTRUCTIONS

PAGE

• INTRODUCTION 4

• XBC ACCESS CONCEPTS 5

• DELIVERY OF EQUIPMENT 6

• HANDLING 6

• STORAGE 6

• ERRECTION & ASSEMBLY 6

• XBC UNIT DIMENSIONS 7

• ATTENUATOR FLANGE CONNECTOR DIMENSIONS 8

• ATTENUATOR DIMENSIONS 9

• INSTALLING THE XBC FAN UNIT & ATTENUATORS 10

• INSTALLING THE XBC WEATHERPROOF ROOF ON ECOSMART CONNECT (CO) FAN UNITS 11

• MOTORISED DAMPER 12

• COMMISSIONING, FILTERS, HEATING COILS LPHW, FAN SECTIONS & ACCESS TO UNIT 13


30. 11. 15. Leaflet Number 671710

029 2085 82004

SUPPLY & EXTRACT VENTILATION UNIT WITH HEAT RECOVERY

INSTALLATION, OPERATING & MAINTENANCEINSTRUCTIONS

The EMC Directive 2004/108/EC The Low Voltage Directive 2006/95/EC

CODE DESCRIPTION: MATCHED COMBINED ATTENUATOR

XBC 25 - HS - MS10 | | | |1 2 3 4

1. XBOXER XBC Range2. Unit Size 10, 15, 25, 45, 55 and 653. HS = Horizontal Supply/Discharge unit

or HE = Horozontal Extract/Intake unit 4. Attenuator MS10 = 1050 mm; MS12 = 1250 mm;

MS16 = 1600 mm

CODE DESCRIPTION: XBOXER XBC VENTILATION UNIT

XBC 45 - H - LCO - R - BA | | | | | | |1 2 3 4 5 6 7

1. XBOXER XBC Range2. Unit size 10, 15, 25, 45, 55 and 653. H = Horizontal Side by Side layout4. E = Electric Heater; L = LPHW Heater, N = No Heater5. CO = Ecosmart Connect Control

CL = Ecosmart Connect Control with Legacy Sensor Support6. R = Opposite arrangement, (refer to page 3)7. BA = Bottom access (filters only, refer to page 3)

Figure 1: Layout Overview of the XBC unit viewed from above and shownwith matched room side and atmospheric side attenuators. Access for maintenance and inspection of the standard XBOXER XBC units is from the side of the unit.

Access to Extract Filter / Fan*

Access to Coil bleed and drain / Valve / Valve Actuator /Electric Heater Elements

Access to Controls

XBC Unit

Room Side Extract / Supply Attenuator:1050 / 1250 / 1600mm long (optional)

Atmospheric side Intake / Discharge Attenuator: 1050 / 1250 / 1600 mm long (optional)

Duct ConnectionBlanking Panel

Access to Intake Filter / Fan / Condensate trayand Pump*

Attenuator/Flange connector

Attenuator/Flange connector

CODE DESCRIPTION: XBC UNITS WITH WEATHER ROOF

XBC 15 - H - LCOWP

Unit Size 10, 15, 25, 45, 55 and 65WP = Fan Unit supplied with Weather Roof

INTRODUCTION - XBOXER XBC ECOSMART (CO) MODELSThe information contained in this document provides details ofinstallation, operation and maintenance for installers and users of theXBOXER XBC Supply and Extract Ventilation Unit with Heat Recovery.

This supply and extract air handling unit range comprises a combination of high efficiency centrifugal fans with EC motors, a counterflow designplate heat exchanger, filters, optional heaters (LPHW and Electric) and acasing with high mass acoustic treatment.

A range of matched, close coupled attenuators with a similar constructionmethod to that of the unit is available. The attenuators can be flipped forpositioning on the left or right of the fan unit (see fig 1) allowing flexibiltyfor duct layout. Attenuators are available in 1050, 1250 and 1600mm lengths and amatching attenuator flange is attached to the fan unit.

General information regarding performance and specifications for theequipment may be obtained from our Technical Literature, and/or projectspecific documentation.


*Note: On bottom access units (BA) Filters cannot be accessed from the side of the unit.

5nuaire.co.uk

1.0 XBOXER XBC UNIT ACCESS CONCEPTSIn this product range, several unique concepts have been implementedwith a view to simplifying the installation design.

1. The unit configuration is such that the supply and discharge connections are positioned on the unit centreline.

The corresponding Intake and Extract connections may be positioned on either side of the unit, allowing greater flexibility in the layout of ductwork in the space. (see Fig 2a) with the blanking panel re-positioned to suit.

2. The standard Ecosmart XBC unit configuration is shown in Fig 2b. Unit handing information will not be requested for this range,and units will be supplied in this format as standard.

3. The unit must be installed with at least 600mm clearance from a wall / barrier on the control side of the unit. With this absolute minimum clearance, the unit may be connected to the power supply and control connections. (Note: - cable connections must allow for the relative movement when the control is re-positioned).

4. With this clearance, unit filters may be changed, and the fans coils, heat exchanger and condensate tray may be inspected and cleaned if necessary.

5. The LPHW and Electrical heater settings, coil bleed and drain, and all other control adjustments are similarly accessible (see Fig 1).

6. Side access, where possible, is preferred in all cases in terms of safe working access to the equipment under the CDM regulations.

7. Note however, that access in the situation is difficult and additional time should be allocated. For convenience it is preferred that wherever possible, this minimum access provision is not adopted, and it is recommended that a minimum of around 600mm clearance (as stated in ADF 2010) is allowed.

8. Where these arrangements are not suitable, the Consultant’s and Contractor’s project specific requirements will always be accommodated where possible.

9. Bottom access only units. (Example code: XBC15-H-LCO BA).Provides access to filters only (see fig 4). Filter removal is not available from the sides on these units. Bottom access units must be installed with the following minimum clearance below the units. XBC15 = 225mm, XBC25 = 300mm XBC45 = 360mm. Note: Bottom access is not available on XBC55 or XBC65 units.

600mm clearancefor access

Access coverson control side of fan unit

Filter removal frominternal frame

Figure 4: The control side of the unit must be installed with at least 600mmclearance from a wall / barrier to gain access from the side.


30. 11. 15. Leaflet Number 671710

Plan view Counterflow Plate Heat Exchanger

Extract Position 2.

Extract Position 1.

Supply(Fixed)

Intake Position 1.

Intake Position 2.

Discharge(Fixed)

Filter

Plan view

Blanking plate

Extract Position 1.

Supply(Fixed)

Intake Position 2.

Discharge(Fixed)

Filter

Blanking plate

Control

Coil connectionsLPHW or Electric Heater Battery

LPHW or Electric Heater Battery

Counterflow Plate Heat Exchanger

Filter access Filter access

Filter access Filter access

Plan view

Discharge(Fixed)

Supply(Fixed)

Extract Position 1.

Blanking plate

Blanking plate

Intake Position 2.

Control

LPHW or Electric Heater BatteryCoil connections

Filter Counterflow Plate Heat Exchanger

Figure 2a: Selectable Duct Connections (Top view).

Figure 2b: Standard Unit Format (Top view).

Figure 3: Opposite unit arrangement (R) side access (Top view).

Note: The unit is shipped with four G4 filters in place, two of which are included as spares. For F7 filters contact Nuaire.

Figure 4: bottom access only unit. (Example code: XBC15-H-LCO BA).

029 2085 82006

Safety first! – before commencing any work ensure:

• That all appropriate risk assesments have been carried out, and the required safety measures have been taken

• That you understand the work required

• That you are trained and competent to carry it out


2.0 DELIVERY OF EQUIPMENT1.1 Receipt of equipment

All equipment is inspected prior to despatch and leaves the factory ingood condition. Upon receipt of the equipment an inspection should bemade and any damage indicated on the delivery note.

Particulars of damage and/or incomplete delivery should be endorsed bythe driver delivering the goods before offloading by the purchaser.

No responsibility will be accepted for damage sustained during theoffloading from the vehicle or on the site thereafter.All claims for damage and/or incomplete delivery must be reported toNuaire within two days of receipt of the equipment.

2.2 OFF LOADING AND HANDLING FROM THEDELIVERY VEHICLE The weight of the unit modules and palletised items is displayed on theunit rating plate or on the packaging. Some of the modules have anuneven weight distribution, and this will be indicated by labelling whereappropriate. Ensure that lifting and handling equipment is adequatelyrated.

Offloading and positioning of the equipment is the responsibility of thepurchaser.

Spreaders should be used when lifting with slings to avoid damage tothe casings. Care must be taken to ensure that slings are correctlypositioned to avoid crushing and twisting of the unit castings.

Where channels and/or support frames are bolted to the underside ofthe unit casing, slings or fork-lift arms should be positioned to locate inthe apertures in the channels. If Lifting Eyes have been supplied / fittedit is recommended that they are used.

Figure 5: Lifting.

XBOXER XBC unit sections will be delivered to site in the number ofsections shown below.

Unit No. of sections

XBOXER XBC Central Ventilation Unit 1

The unit will be labelled with the direction of air flow. The direction convention must be observed during assembly. The unit may only be operated in its intended horizontalinstallation plane.

The unit must be fully levelled during installation (this is essential toensure that condensate drains correctly).

See page 7. for dimensions and weights.

2.3 STORAGEThe equipment must be stored in a dry, internal location. Ductworkconnection apertures shall be sealed against the ingress of dust, waterand vermin.

If the storage period is to exceed two months, contact Nuaire forguidance on the appropriate “mothballing” procedures.

Do not stack units, modules or components.

3.0 ERECTION AND ASSEMBLYUnits must be installed in accordance with good industry practice.These units may only be mounted horizontally and must be fullylevelled in the horizontal plane.

The units are heavy, and should be mounted using the fixing bracketssupplied or other suitable methods of support. The supporting structure must be assessed for structural suitability.

Heat recovery components and modules that incorporate cooling coilsmay produce condensation during use. An insulated drip tray and condensate pump is provided. The drain connection must be connected to a suitable drainage point.(See fig 13, page 13 for details).

CONDENSATE PUMP ALARM

The condensate pump incorporates an alarm function. If the water levelin the condensate tray exceeds a maximum level (for example, as aresult of the discharge tube becoming blocked or frozen), the alarmcontact will open. This contact is internally connected to the heatexchanger bypass actuator, and the unit will automatically be placedinto bypass mode, preventing further condensate production. Unitoperation will otherwise be unaffected.

CONDENSATE PUMP SPECIFICATION

Maximum flow rate = 12 l/h

Maximum head = 20m Vertical, 100m Horizontal

Pipe Connection size (Low Pressure Condensate connection) XBOXER XBC = 8 mm

LPHW Coils, if fitted, are tested during manufacture to 16 Bar (usingdry compressed air). Coil and valve assemblies are similarly tested to10 Bar. Operation of standard equipment is rated at PN6, if theintended system requires higher operating pressures; please contactthe Nuaire Technical department for advice.

Electrical connections to the unit shall be made in accordance with theappropriate product (see below); and installation wiring diagrams, andshall use appropriately sized and rated cables.

Only the prepared apertures in the unit casing may be used for cableentry. Do not drill or cut the unit casing for this purpose. Cable accesspoints are provided at the ends of the control enclosure.

If the control is rotated to aid connection of cables, please ensure thatsufficient flexibility is provided in the final connection run.

NB to avoid conflict with the unit access panels, it is recommendedthat electrical and plumbing service connections to the unit are run at90 degrees to the main air flow axis.Control circuit connections must be segregated (i.e. routed separately) from power connections.

The unit rating label shows the maximum electrical load of theequipment. Connections to the unit may include single phase supplyconnections, and a variety of control circuits.

Only the prepared apertures in the unit casing may be used for cableentry. Do not drill or cut the unit casing for this purpose.

The equipment must be earthed and earth-bonded. Means of local isolation for maintenance purposes are generallyrequired (by others). Ensure that all mains connections are isolated.

Palletised.

Slings via spreaders fitted to unit with base frame.

7nuaire.co.uk


Unit code Dimensions (mm) Control dimensions Unit weights Packed weights * A B C J K M E F G (kg) (kg)

XBC10-*CO 1600 1000 260 250 225 340 120 200 670 145 195XBC15-*CO 1600 1000 260 250 225 340 120 200 670 195 245XBC25-*CO 1700 1150 340 265 305 455 120 200 670 242 292XBC45-*CO 1900 1250 400 280 365 525 120 200 670 298 398XBC55-*CO 1900 1560 470 410 435 580 120 200 670 368 418 XBC65-*CO 1900 1560 620 410 585 580 120 200 670 476 626

Figure 6: Standard unit dimensions (mm) and weights (kg).

2 attenuator flange connectors are attached to every unit. Add 50mm to dimension ‘A’ to include both flanges.

*Type of heater battery.

4.1 XBOXER XBC UNIT HANGING BRACKET POSITIONS

CB

A

C

1 2

3 4

Unit code Dimensions to hole centres (mm)A B C

XBC10 1059 858 371XBC15 1059 858 371XBC25 1207 888 406XBC45 1309 1008 446XBC55 1619 1058 421XBC65 1619 1058 421

Figure 7: Plan view of unit with 4 hanging brackets attached (Two each side of the unit).

4.0 XBOXER XBC (CO) UNIT DIMENSIONS (MM) AND WEIGHTS (KG)

Plan view Side view

End view

K

MJ

E

F

G

A

B

C

30. 11. 15. Leaflet Number 671710

Weatherproof Dimension Changes (mm)A B C J K M E F G

Weatherproof Add Add Add No No No Add Equal to AddUnit Size Increase 470 260 100 change change change 130 dim C 400

Size increases are approximate and may vary depending on model.

029 2085 82008


4.2 XBOXER XBC ATTENUATOR FLANGE CONNECTOR DIMENSIONS (MM) Figure 8.

XBC10 & 15 FLANGE CONNECTOR

INLET OUTLET

10 257.8 366.8

666.7

278.8 387.8

262.

122

0.1

11

240.

1 11

M8 Inserts 1022

XBC25 FLANGE CONNECTOR



R 0

11

INLET OUTLET

10 417.5 607.522

438.5 628.5

1067

472

430

11

450

M8 Inserts 10


INLET OUTLET

10 290.5 551.522

311.5 572.5

884

402

360

11

380.

0

M8 Inserts 10

11

R 0

11

INLET OUTLET

10 417.5 607.522

438.5 628.5

1067

622

580

11

600

M8 Inserts 10

INLET OUTLET

10 272.5 491.4

808

294.6 513.5

342.

1

300.

1

10

322.

1 10

M8 Inserts 1022

Hole centres.

Compatible with 20mm Mez.

Note: The flange connectorleaves factory attached tounit.

9nuaire.co.uk


A

B2 C

Plan view Side view

End view

B1

HE HS

UnitUnit Code Dimensions (mm) weights

A B1 B2 C (kg)XBC15-HS-MS10* 1050 340 225 49XBC15-HE-MS10* 1050 250 225 37 XBC15-HS-MS12* 1250 340 225 63XBC15-HE-MS12* 1250 250 225 50 XBC15-HS-MS16* 1600 340 225 81XBC15-HE-MS16* 1600 250 225 62 XBC25-HS-MS10 1050 455 305 59 XBC25-HE-MS10 1050 265 305 44 XBC25-HS-MS12 1250 455 305 76XBC25-HE-MS12 1250 265 305 59 XBC25-HS-MS16 1600 455 305 99 XBC25-HE-MS16 1600 265 305 73 XBC45-HS-MS10 1050 525 365 69XBC45-HE-MS10 1050 280 365 49 XBC45-HS-MS12 1250 525 365 88XBC45-HE-MS12 1250 280 365 66 XBC45-HS-MS16 1600 525 365 114XBC45-HE-MS16 1600 280 365 81 XBC55-HS-MS10 1050 580 435 79XBC55-HE-MS10 1050 410 435 62 XBC55-HS-MS12 1250 580 435 101XBC55-HE-MS12 1250 410 435 82 XBC55-HS-MS16 1600 580 435 131XBC55-HE-MS16 1600 410 435 102 XBC65-HS-MS10 1050 580 585 87XBC65-HE-MS10 1050 410 585 74 XBC65-HS-MS12 1250 580 585 112XBC65-HE-MS12 1250 410 585 97 XBC65-HS-MS16 1600 580 585 145XBC65-HE-MS16 1600 410 585 122

Coding: The ‘HS’ denotes the type of silencer required for the supply or discharge. The ‘HE’ denotes the type of silencer required for the extract or fresh air intake on theunit.*Note: XBC15 silencers are also suitable for XBC10 units.

Figure 9: Attenuator dimensions (mm).

4.3 XBOXER XBC ATTENUATOR DIMENSIONS (MM) AND WEIGHTS (KG)

30. 11. 15. Leaflet Number 671710

029 2085 820010


1. Secure standard Unistrut channel to the slab/ steelwork above the attenuators.

2. Secure M8 drop rods from the Unistrut channel into position.

3. Raise up the attenuator into position and attach the four piece support brackets onto the drop rods.(2 on each attenuator).

4. Utilising the 2 x 5.6mm dia holes in each bracket use relevant self tapping screws to fix into position on the underside of the attenuators.

5. Immediately before securing the attenuator to the connector, remove the backing from the Foam Sealing Strip.

6. Secure the attenuators to the attenuator flange connector on the end of the fan unit. (see fig 10).

Figure 10a: Installing the fan unit.

2. Secure the four droprod suspension systemfrom the Unistrut channelinto position through thefan unit’s mountingbrackets. (2 each side ofthe unit, see bracket positions page 4).

The attenuators are secured to the fan unit usingthe attenuator flange connector on each end of thefan unit when the recommended installationprocedures in fig 10a have been completed(compatible with 20mm Mez).

1. Standard Unistrutchannel secured to theslab /steelwork above the unit.

5.0 INSTALLING THE XBC FAN UNITS AND ATTENUATORSThe ventilation unit must be installed first–with consideration madefor the length of the associated attenuators.

Installation of the XBOXER XBC units, including all external services andcontrols should be installed in accordance with the appropriate siteprocedures, and MUST conform to all governing regulations e.g. CDM,CIBSE, IEE, and in strict accordance with the applicable BuildingRegulations.

The correct installation position for the units shall be decided with dueregard to access and maintenance requirements, and the objective ofminimising the system ductwork resistance.

The recommended installation method is to use standard Unistrutchannel secured to the slab / steelwork above the unit.

Four suitable drop rods should be secured to the Unistrut channel andextended to be fixed to the unit’s four mounting brackets, (two each sideof the fan unit) or to other horizontal supports by others where widerload distribution is required.

INSTALLING THE ATTENUATORS

It is recommended that additional Unistrut channels are used to supportthe matched attenuators. M8 drop rods should be secured to theUnistrut channel and extended to be fixed to the four piece supportbrackets to be used on the underside of the attenuators. (see fig 10b).

Note – once the attenuators are supported and levelled, andImmediately before securing the attenuator to the attenuator flangeconnector, remove the backing from the Foam Sealing Strip.

The attenuators must be secured to the unit using the screws provided.

Figure 10b: Installing the fan attenuators.

Four piece support brackets.

11nuaire.co.uk


A

CE

F

B

D

Figure 11: Installing the Weatherproof Roof, Exhaust & Intake Terminals.

5.1 INSTALLING THE XBC WEATHERPROOF ROOF ON ECOSMART (CO) FAN UNITS

CODE DESCRIPTION: EXAMPLE WEATHERPROOF ANCILIARY CODE:

XBC15-H-WP-CO

30. 11. 15. Leaflet Number 671710

Having installed the ventilation unit and attenuators, theWeatherproof Roof can now be installed if required.

The Roof assembly and control cover must be secured to the unit usingthe fixing channel provided. In order to fit the weatherproof cover, thefour existing external hanger brackets must be removed.

When the roof has been installed onto the fan unit please ensure thatthe edges of the roof are fully sealed where it joins the fan unit.This does not apply to the control cover as this will have to be removedif necessary.

WEATHERPROOF COMPONENTS

Item Description QuantityA Roof Assembly 1B Control Cover 1C Fixing Channel 4D Control Lid with Heater 1

OPTIONAL EXHAUST & INTAKE TERMINALSItem Description QuantityE Exhaust RT 1F Intake RT 1

UNIT CODES FOR OPTIONAL EXHAUST & INTAKE TERMINALSXBC10-EXHAUST-RTXBC10-INTAKE-RT XBC15-EXHAUST-RTXBC15-INTAKE-RT XBC25-EXHAUST-RTXBC25-INTAKE-RT XBC45-EXHAUST-RTXBC45-INTAKE-RT XBC55-EXHAUST-RTXBC55-INTAKE-RTXBC65-EXHAUST-RTXBC65-INTAKE-RT

The weatherproof control lid is supplied with a built inthermostat and heater for low temperature and anti-condensation applications.The lid is equipped with a live, neutral and earth flying leads forconnection into the control panel.To remove the cover, first disconnect the heater power connectorbehind the small access cover. The cover will then lift off asnormal.The thermostat should not be set any higher than 10OC.

Caution, the heater may retain some residual heat even whendisconnected.

029 2085 820012


5.2 XBC MOTORISED DAMPERS Internal version (example code: XBC15-MD-CO). External weather proof version (example code: XBC15-MD-CO-WP).

If Nuaire matched silencers (example code XBC15-H-MS16) are being fitted to the fan unit, the motorised damper (example codeXBC15-MD-CO) needs to be fitted after the silencers (as figure 12). This ensures that breakout noise levels are kept to a minimum.

The motorised damper units will be supplied loose and are designed to fit directly onto the flange connector (by others).

l Fully interlocking parallel blades, half inch diameter electroplated

mild steel spindle.

l Nylatron bushes and external nylon/aluminium blade

inter connection linkage.

l Fitted with Belimo SM24A-S drive open/drive close actuator

complete with switch.

Note: See section 9 for wiring diagrams.

Fan unit

Silencers

Motorised Damper

Belimo SM24A-S drive open/drive close actuator complete with switch.

165m

m d

eep

Figure 12: Installing the Motorised Damper.

6.0 COMMISSIONING & SETTING TO WORK(Note – not all of the components listed here are necessarilyincluded with the equipment supplied).

6.1 FILTERSRemove filter access panels (observe and note airflow direction labels),inspect filters for contamination with construction debris, replace asnecessary. Replace access panels.

Filter pressure drops will depend on actual flow rate and condition.Observe and record filter pressure drops after performance commissioning.

Typically, filter “dirty” condition occurs when the initial filter “clean”readings have been increased by 125Pa.

If filter manometers, pressure switches or indicators have been fitted,they should be set or adjusted to reflect the commissioned systemoperation.

6.2 HEATING COILS LPHWObserve the Flow and Return connection labels on the unit. Drain and bleed valves are located on the coil (see fig 12).Other valves may be required in the system pipe-work depending onthe installation (by others).

Where the wet system is at risk of frost damage, the addition of aproprietary anti-freeze solution to the water is recommended. Note that any frost protection offered by the unit’s integral controlsystem will not operate if the power supply to the unit is interrupted.

Piped connections should be made to the unit using appropriatetechniques, and all pipework must be independently supported.

No hot work is permitted within one metre of the unit.

Ensure that installed pipework runs do not prevent or restrict access to the unit at any point.

The completed installation (including the connections within the unit,as these may be disturbed during installation) shall be pressure testedto the project engineer’s specification.(This is a condition of the unit warranty).

6.3 FAN SECTIONSAccess to the fan section is via lift off panels. (see figs 1 & 13).

For non-Ecosmart units, wiring to the fan motor / unit terminal boxshould be mechanically protected and in made in accordance with thedetails on the motor name plate and diagram attached to the unit.

With the unit electrically isolated, rotate the fan impeller / drivemanually, checking that it spins freely. Check all fixings are secure.

Units must not be operated without all access panels in place – damage to equipment or injury to personnel may result.

Units must not be operated unless control interlocks are in place –damage to equipment may result.

Test run motor for condition and correct rotation.

Check that the correct current overloads are fitted and that the current being drawn does not exceed the motor nameplate value.Excessive current normally indicates that the ductwork system resistance is different to design.

6.4 ACCESS TO FAN UNITAccess to the fan sections on the non control side and controls side ofthe unit is shown in figure 1. Access to the Dampers and actuators is shown in figure 1.

Condensate Alarm

The condensate pump incorporates an alarm function. If the water level in the condensate tray exceeds a maximumlevel (for example, as a result of the discharge tube becomingblocked or frozen), the alarm contact will open. This contact isinternally connected to the heat exchanger bypass actuator, and the unit will automatically be placed into bypass mode, preventing further condensate production. Unit operation willotherwise be unaffected.

Condensate drain connection8 mm flexible pipe

Control boxCoil connections40mm centres

Isolation - Before commencing work make surethat the unit, switched live and Nuaire control are

electrically isolated from the mains supply.

Figure 13: Control side of unit showing coil and condensate connections.

Access to Condensate trayand Pump.

13nuaire.co.uk


30. 11. 15. Leaflet Number 671710

029 2085 820014

INDEX - DESCRIPTION OF CONTROL


PAGE

• GENERAL 15

• CONTROLLABLE ITEMS 15

• ENABLE SIGNAL 15

• ROOM MODULES & CONTROL FUNCTIONS 15 - 18

• EXPOSED BACNET OBJECT LIST (BY CATEGORY) 19 - 23

• NETWORKING 24

• BUS DEVICES 25 - 33

• ROOM MODULE WIRING 34

• ROOM MODULE DIMENSIONS 35

• AVAILABLE ROOM MODULES 36

• SENSOR ADDRESSING 37

• CONNECTION AND CABLES 38 - 39

• EXPOSED BACNET OBJECT LIST (BY INSTANCE NUMBER) 40 - 44

• ELECTRICAL DETAILS 45 - 47

• DIAGRAMS 48 - 61

• MAINTENANCE & SERVICE SCHEDULE 62

• CERTIFICATION 63

7.1 GENERALThe system incorporates a preconfigured BACnet MS/TP enabled

controller.

7.2 THE NUAIRE UNIT CONTAINS THE FOLLOWINGCONTROLLABLE ITEMS:l Inlet Damper (if fitted).

l Exhaust Damper (if fitted).

l Heat Recovery and Bypass Damper.

l Heating Coil (if fitted).

l Cooling Coil (if fitted).

l Supply Fan Speed.

l Extract Fan Speed.

7.3 ENABLE SIGNALThe unit can be enabled via the following methods:

l Software switch (ENABLE) via local display or network.

l Switched live (230VAC) input, PIR etc.

l Volt free input contacts.

l Night cooling / summer free-cooling strategy.

l Scheduled via weekly calendar. (Schedule are accessed and

adjusted via the ESCO-LCD)

l Fan Speed Override

l Room Module PIR sensor

l Room Module 3-Fan Speed Button (While in low, med or high state)

When the enable signal is removed, the unit will run on for a time defined by

the run-on setpoint.

If auto run-on is enabled, the unit will measure the each enable period and set

a dynamic run-on time proportionally to this value. This time is scaled by the

network input “Auto run-on Scale Factor” and limited by the input “Auto Run-

on Max Time”.

7.4 ROOM MODULESEcosmart Connect allows the connection of multiple Room Modules which are

automatically detected and connect to the controller via a SA (Sensor

Actuator) MS/TP bus. See Network Accessory section for more connection

details.

7.4.1 ROOM MODULE PIRWhen a Room Module PIR sensor is connected via the SA bus, the control will

automatically use this as an enable signal by default. There is a non-adjustable

minimum run-on time of 15mins for Room Module PIRs. This is in addition to

any software run-on times.

7.4.2 RM 3-SPEED FAN OVERRIDE (ESCO-TDFS ONLY)When a RM fan speed override is available it will override fan speed functions.

This function overrides any run-on time (except for electric heater heat

dissipation). While in override mode, the unit will ignore return air temperature

and set the supply air to the setpoint. Multiple fan override sensors are not

supported.

Whenever a fan-speed override Room Module is connected, the display will

automatically show the fan speed status at all times. Warning: If a RM Fan

Speed override button is left in any position (apart from auto), the unit will

stay in override mode indefinitely. This includes off mode.

Mode Operation Display

“Auto” The controller will ignore the fan

speed override. Current fan

speed will still be displayed.

“Off” The controller will override all

functions and stop the fans.

“Low” The fans run at low speed.

“Medium” The fans run at medium speed.

“High” The fans run at high speed.

15nuaire.co.uk


7.0 DESCRIPTION OF CONTROL SOFTWARE STRATEGY

30. 11. 15. Leaflet Number 671710

(MS/TP)

029 2085 820016

7.4.3 RM OCCUPANCY DISPLAYIf an RM sensor with occupancy display is connected, it will automatically

display the occupancy state as follows.

State Description RM Display

Occupied An enable signal is present

i.e. Fans are running.

Unoccupied No enable & no trickle.

i.e. Fans are stopped.

Standby No enable signal but fans

are trickling

7.5 MULTIPLE SENSORSWhere multiple sensors are connected the following options are available.

Network Input Name Options

Temp Sensor Operation Room module average (Default)

Return Air only

Room Module & Return Air Average

Setpoint Operation Last Value Changed (Default)

Software Setpoint Only (ignore

room module)

Humidity Sensor Operation Average (Default)

Max

Ignore

CO2 Sensor Operation Average (Default)

Max

Ignore

Pressure Sensor Operation Average (Default)

Max

Ignore

7.6 AUXILIARY INPUTS 4 & 5 (0-10V INPUTS)The function of IN4 & IN5 can be set by the network inputs IN4 Function &

IN5 Function. The available options are as follows.

Function Description Available Ranges

None The signal is ignored N/A

Fan Speed A 0-10V input is used as a

Control fan speed demand. N/A

0V = Min Speed

10V = Max speed

EGG (Ecosmart 0-10V from the EGG PCB is

Gateway Control used as a fan speed N/A

Gadget) demand. The optional EGG

PCB can be used for back-

wards compatibility with some

Ecosmart Classic sensors.

0-10V CO2 0-10V is scaled as defined 0-2,000ppm

Sensor by the network input 0-4,000ppm

“CO2 0-10V Output Range” 0-5,000ppm

0-10,000ppm

0-20,000ppm

Function Description Available Ranges

0-10V 0-10V is scaled as defined by 0 to 50°C

Temperature the network input 0 to 40°C

Sensor “Temperature Sensor 0 to 100°C

0-10V Output Range” 0 to 80°C

0 to 90°C

0-10V Pressure 0-10V is scaled as defined by 0-25Pa

Sensor the network input 0-50Pa

“Pressure Sensor” 0-100Pa

0-300Pa

0-500Pa

0-1000Pa

0-1600Pa

0-2500Pa

0-3000Pa

0-10V 0-10V is scaled to 0-100%

Humidity humidity 0-100% only

Sensor

7.6.1 FAN SPEED CONTROL INPUT Once assigned to either input 4 or 5, the 0-10V input is scaled to 0-100% fan

speed demand.

7.6.2 ECOSMART GATEWAY GADGET (EGG)If an EGG PCB is installed on the system this will give an enable signal and also

a 0-10V fan speed demand. The EGG allows an existing NET sensor network to

give a fan speed demand to a controller.

7.6.3 CO2 CONTROLWhen a CO2 sensor is assigned to the system and an enable signal is received,

ventilation will increase fans speeds to reduce CO2 concentration. The target

CO2 sensor setpoint can be changed as one of the commissioning setpoints.

Room Module CO2 sensors are detected automatically. 0-10V CO2 sensors

need to be assigned to input 4 or 5.

7.6.4 HUMIDITY CONTROLWhen a humidity sensor is assigned to the system and an enable signal is

received, ventilation will increase fans speed to reduce humidity. The target

humidity setpoint setpoint can be changed as one of the commissioning

setpoints. Room Module humidity sensors are detected automatically. 0-10V

humidity sensors need to be assigned to input 4 or 5.

7.6.5 CONSTANT PRESSURE CONTROLWhen a pressure sensor is assigned to the system and an enable signal is

received, ventilation will increase fans speeds to increase pressure to the target

setpoint.

The target pressure setpoint can be changed as one of the commissioning

setpoints. 0-10V pressure sensors need to be assigned to input 4 or 5. Room

Module pressure sensors are not available.



(MS/TP)

7.8.2 ROOM TEMPERATURE CONTROL Figure 15:While an enable signal is present, this mode modulates heating, cooling &

heat exchanger bypass dampers with the aim of the room air reaching the

temperature setpoint. Please note that heating and cooling outputs will only

function if the “Heating Type” or “Cooling Type” network inputs are set to

heating or cooling options.

When heating or cooling is required achieve the room setpoint, the output of

the heat/cool loops are split between ventilation demand or heat/cool

demand according to the following graphs. The intermediate “boost” zone is

the area in which a small amount of free-heat/cooling is available. In this zone,

heating/cooling is used to boost the free-heating/cooling.

In room temperature control mode, the bypass damper is controlled according

to the following chart. A minimum supply air temperature limit is included to

stop the heat exchanger being bypassed when the air temp is uncomfortably

cold, even though cooling is required. In this case the heat exchanger will

temper the air for comfort. The reverse applies for the maximum supply air

temperature limit.

If the supply air temperature exits the min-max supply temperature range, the

unit will adjust ventilation, heating or cooling to compensate.

Note: Room temperature control will only be effective if the heater unit is

sized correctly for the space. If the unit is undersized, heating from an

external source may be required.

17nuaire.co.uk



30. 11. 15. Leaflet Number 671710

7.7 CONFIGURABLE MODE (VIA SWITCHED LIVE 2)The switched live 2 input is a configurable input that can be set to perform a

number of functions. The function is set via the network input Configurable

Mode SL2.

These functions will include the following:

l Fan Boost (Default Setting)

This enables Fan Boost mode

l Heater Boost

The heater function will be enabled. Fan speeds will be increased where

necessary to keep supply temp at the heater boost setpoint. (Default 35°C).

7.7.1 FAN BOOSTWhen the control receives a boost signal, from either the network input

“Boost” or “Configurable SL2” configured to boost the fans will run at boost

speed. Once the signal is removed the fans will run on for a time defined by

the boost run-on setpoint.

7.7.2 HEAT BOOSTWhen the control receives a heat boost signal, from either the network input

“Heat Boost” or “Configurable SL2” configured to “heat boost”, the heater

output will increase to 100%. The fan speed will be increased as required to

reach the heat boost setpoint.

7.8 TEMPERATURE CONTROL

7.8.1 SUPPLY TEMPERATURE CONTROL (DEFAULT) Figure 14:While an enable signal is present, this mode modulates heating, cooling &

heat exchanger bypass dampers with the aim of the supply air reaching the

temperature setpoint. Please note that heating and cooling outputs will only

function if the “Heating Type” or “Cooling Type” network inputs are set to

heating or cooling options.

The heat exchange bypass damper operates by calculating the supply air

temperature based on the return air temperature, the outside air temperature

and the heat exchanger efficiency. (Eg. A 13°C outside air temperature with a

23°C return air temperature will give a supply air temperature of 20.5°C).

The control then chooses the damper position which requires the minimal

heat/cool tempering in order to achieve the setpoint. Note that the white areas indicate regions where either heat exchanging or

bypassing will achieve the same supply temperature.

Roo

m A

ir T

emp

Outside Air Temp

Free HeatingVent Only

Boost Band

Heat B

oost

Zone

Heating

Cooling

Boost Band

Roo

m A

ir T

emp

Free CoolingVent Only

Outside Air Temp

Cool B

oost

Zone

Bypass

Bypass

HX

HX

Deadband

H

Roo

m A

ir T

emp

Min Supply Outside Max Supply Air Temp. Air Temp. Air Temp.

Room Set

Point

Roo

m A

ir T

emp

Supply Set

Point

Outside Air Temp.

HX

HX

Bypass

Bypass

029 2085 820018

7.8.3 OVERRIDESWhen the following conditions occur, the system will temporarily exit “Room

Temperature Mode” and enter “Supply Temperature Mode”.

l Trickle Mode with no enable signal. (Trickle deadband applies)

l Heat Boost Active

l Fan Boost Active

l Purge Mode Active

l 3-Speed override by Room Module

7.9 TRICKLE MODEWhen trickle mode is active, the fans will run at their minimum speed even

when there is no enable signal. Heating and cooling will also function in this

mode if available. While in trickle mode, the unit will function in “Supply

Temperature Control Mode” but with a different, wider deadband, set by the

network input Trickle Deadband.

7.10 FROST PROTECTIONShould the internal temperature of the unit fall below a value defined in the

commissioning variables, the control will override all heating/cooling logic to

open the LPHW or CW control valves, if fitted. This is to allow any protective

flow through the heating/cooling coils. The supply fan will also stop and the

appropriate frost protection software module will enter an alarm state. This

period will last for a minimum of 5 minutes by default. The fault relay will also

open. Heat and cool demand relays will operate and the software frost alarm

will enter an alarm state.

Please note that frost protection will only function if the Heating Type or

CoolingType setpoints are set to LPHW or CW.

7.11 NIGHT COOLING / SUMMER FREE COOLINGOnce enabled in software, this routine uses an individual time schedule to cool

the fabric of the building at night using only the external air. This mode only

functions if the daytime temperature is above the setpoint, cooling is possible

and if the cooling air is not too cold.

7.12 PURGE MODEOnce enabled in software, this routine uses an individual time schedule to

provide a period of increased air change throughout a space. This mode only

functions if the inlet air is above a minimum temperature of 12°C. While purge

is in progress, the unit will function in “Supply Temperature Control Mode” but

with a different, wider deadband, set by the network input “Trickle Deadband”.

7.13 HIBERNATEThis mode is available for LPHW and CW units where the valves are required to

be driven open in anticipation of a period where the unit is electrically isolated

and inactive. When enabled via the network input “Hibernate Mode” this will

stop the fans and open all LPHW & CW valves fully. The unit can then be

powered down. This mode activation is reset upon power cycle so when

restarted the unit will function as normal.

This mode is for periods when to building is left dormant and will stop the coils

trapping water and causing a freeze risk. It will be the buildings responsibility to

provide freeze-preventative heating during this time. This can also be used for a

cleaning or flushing cycle.

7.14 ALARMS

7.14.1 CRITICAL ALARM LATCHINGOnce in critical alarm state the unit will drive all heating and cooling outputs to

0V. In the event of fan fail other functions continue as normal. The critical alarm

is latched and required manual reset or power cycle to clear.

Causes of critical alarm:

l Fan fail via fault circuit 1

l Heater overtemp via fault circuit 1

7.14.2 MAINTENANCE ALARMS (NON-LATCHING)Once in maintenance alarm state the only action taken is de-energising of the

fault relay. Once the trigger is removed, the alarm will reset automatically.

Causes of maintenance alarm:

l Condensate pump fault (This bypasses the heater exchanger automatically)

l Sensor Failure

l Low supply temperature, default 8°C. This can be set to stop fans if required

l Frost protection routine active, default 4°C (This only runs if water valves

are selected as fitted)

l Excessively high supply temperature reading (this will stop heating)

l Filter dP fault (if fitted)

All alarms have a hold off period set by the setpoint “Alarm Delay”.

7.14.3 THERMAL TRIPIn case of software failure, as a final resort, the electric heater is protected by

a fail-safe thermal overload switch. This switch disables the heater controller

once the temperature reaches 80°C. When this occurs, the critical alarm will

latch in software.

Once the unit cools, the contactor will re-engage but the heater signal will

remain at 0V until the critical fault is reset in software or by power cycle.



(MS/TP)

19nuaire.co.uk30. 11. 15. Leaflet Number 671710



TRICKLE MODE

35 Trickle Mode Enable trickle mode MSV 1 0250 Off Off/On

16 Trickle Deadband Trickle mode deadband AV 10316 5 Degrees-Celsius

IO DAMPERS

13 IO Damper Delay Delay between starting the fan AV 10279 0 Seconds

relay and the fan output.

ANALOGUE INPUTS

2 IN4 The 0-10 voltage at input 4 AI 10032 N/A Volts

29 IN4 Function Function of the UI4 input MSV 10209 None None

Fan Speed Control

EGG

0-10V CO2 Sensor

0-10V Temperature Sensor

0-10V Humidity Sensor

0-10V Pressure Sensor

2 IN5 The 0-10 voltage at input 5 AI 10035 N/A Volts

30 IN5 Function Function of the UI5 input MSV 10210 None None

Fan Speed Control

EGG

0-10V CO2 Sensor




7.15 EXPOSED BACNET OBJECT LIST (BY CATEGORY)

ENABLE

LCD Browser BACnet Object Description Object Object ID Default Value Units

Page Type

32 Enable Software enable switch MSV 10218 Off Off/On

19 SL Enable The state of the enable input BI 10161 N/A Off/On

10 Run-on (Enable) Run-on timer value AV 10267 0 Seconds

25 Time Schedule Local Time Schedule SCH 10496 N/A N/A

32 Enable via Schedule Enabled via Schedule MSV 10219 N/A Off/On

CONFIGURABLE INPUTS

19 SL2 Input The state of the configurable input (IN9) BI 10164 N/A Off/On

28 SL2 Mode Set the function of switched live 2 MSV 10202 Fan Boost None/Fan Boost/Heater Boost

FAN BOOST

32 Fan Boost Software enabled Fan boost MSV 10240 Off Off/On

11 Run-on (Boost) Boost run-on time AV 10272 0 Seconds

11 Fan Boost Speed Fan boost speed AV 10273 100 Per cent

HEAT BOOST

28 Heat Boost Software enabled Heater boost MSV 10205 Off Off/On

12 Heat Boost Setpoint Setpoint Heater Boost Setpoint AV 10276 35 Degrees-Celsius

FAN OUTPUTS

7 Supply Fan Output The 0-10V signal to the supply fan AO 10182 N/A Volts

7 Extract Fan Output The 0-10V signal to the extract fan AO 10176 N/A Volts

20 Fan Enabled Cmd The state of the fan enabled relay BO 10191 N/A Off/On

029 2085 820020



TEMPERATURE CONTROL

15 Software Setpoint Software Setpoint AV 10309 22 Degrees-Celsius

10 Deadband Deadband for temp control AV 10266 3 Degrees-Celsius

31 SetPoint Op Setpoint operation MSV 10214 Last Value Chg Last Value Changed

/Software Only

31 T Sens. Op Temperature sensor operation MSV 10215 NS Average NS Average/Return Air Only/

NS & Return Average

31 0-10V Temp Range Temperature sensor range MSV 10216 0 to 50°C 0 to 50°C/0 to 40°C/

0 to 100°C/0 to 80°C/

0 to 90°C

33 Temp Control Mode Temperature control mode STC/RTC MSV 10245 ReturnTempCtrl Supply Temperature Ctrl/

Return Temperature Ctrl

15 STC H/C Pref STC Heat/Cool Pref AV 10310 50 No units

16 STC HX Efficiency STC HX Efficiency AV 10311 0.8 No units

14 RTC Boost Band Return Temperature Control Boost Band AV 10306 15 Degrees-Celsius

15 RTC Max Supply Temp Max supply temp when in RTC mode AV 10307 35 Degrees-Celsius

15 RTC Min Supply Temp Min supply temp when in RTC mode AV 10308 12 Degrees-Celsius


FAN COMMISSIONING

LCD Browser BACnet Object Description Oject Object ID Default Value Units

Page Type

10 Extract Fan Max Individual fan maximum speed setting AV 10268 100 Percent

11 Extract Fan Min Individual fan minimum speed setting AV 10270 20 Percent

16 Supply Fan Max Individual fan maximum speed setting AV 10312 100 Percent

16 Supply Fan Min Individual fan minimum speed setting AV 10314 20 Percent

HEATING OUTPUT

29 Heating Type Set the type of heating fitted MSV 10206 As per build None/LPHW/Electric

7 Heating Output The 0-10V signal to the heating output AO 10179 N/A Percent

21 Heating Demand Cmd The state of the heating demand relay BO 10197 N/A Off/On

COOLING OUTPUT

28 Cooling Type Set the type of cooling fitted MSV 10203 None None/Cold Water/DX

7 Cooling Output The 0-10V signal to the cooling output AO 10173 N/A Percent

20 Cooling Demand Cmd The state of the cooling demand relay BO 10194 N/A Off/On

HX BYPASS DAMPER

20 Bypass Damper Cmd The signal to the bypass damper BO 10185 N/A Open/Close

(Close = Bypass)

(MS/TP)

21nuaire.co.uk


7.0 DESCRIPTION OF CONTROL SOFTWARE STRATEGY7.0 DESCRIPTION OF CONTROL SOFTWARE STRATEGY


FAN DEMANDS INPUTS


Page Type

10 CO2 Target Target CO2 Value AV 10265 650 Parts-Per-Million

27 0-10V CO2 Range CO2 sensor output range MSV 10200 0-2,000ppm 0-2,000ppm/0-4,000ppm/

0-5,000ppm/0-10,000ppm/

0-20,000ppm

27 CO2 Sensor Op CO2 sensor operation in case of MSV 10201 Average CO2/MaxCO2/

multiple sensors Ignore CO2

12 Humidity Target Relative HumidityTarget AV 10278 60 Percent-relative-Humidity

29 Humidity Sensor Op Humidity Sensor Operation in case MSV 10207 Average RH% Average RH%/Max

of muliple sensors RH%/Ignore RH%

14 Pressure Target Target pressure value AV 10303 400 Pascals

30 0-10V Press Range Pressure sensor range MSV 10212 0 to1000Pa 0-25Pa/0-50Pa/0-100Pa

/0-300Pa/0-500Pa/0-1000Pa

/0-1600Pa/0-2500Pa/

0-3000Pa

30 P sens. Op Pressure sensor operation in case of MSV 10213 Average Value Average Value/

multiple sensors Max Value

SELECTED PROCESS VARIABLES

17 Room Air Temp The room air temperature AV 11296 N/A Degrees- ‐Celsius

17 CO2 Level The CO2 Level AV 13980 N/A ppm

17 Humidity The Humidity Level AV 14297 N/A % RH

17 Active Setpoint The setpoint currently used AV 14534 N/A Degrees-Celsius

XBC TEMPERATURE SENSORS

1 Supply Air Temp (B) The supply air temperature AI 10005 N/A Degrees-Celsius

1 Fresh Air Temp (H) The fresh air temperature AI 10008 N/A Degrees-Celsius

1 Extract Air Temp (C) The extract air temperature AI 10011 N/A Degrees-Celsius

ZONE SENSORS

2 RM199 Temp The temperature at RM address 199 AI 10029 N/A Degrees-Celsius

2 RM199 Humidity The Humidity at RM address 199 AI 10017 N/A Percent-Relative-Humidity

8 RM199 Setpoint The setpoint at RM address 199 AV 10023 N/A Degrees-Celsius

26 RM199 Fan Speed Fan Speed Override Status of RM199 MSV 10014 N/A Off/Auto/Low/Medium/HIgh

35 RM199 Fan Display Fan Speed Override Display at MSV 14703 N/A No Status/Off/Low/Medium

RM address 199 /High/Auto-Off/Auto-Low

/Auto-Medium/Auto-High



8 RM200 Setpoint The set point at RM address 200 AV 10074 N/A Degrees-Celsius







30. 11. 15. Leaflet Number 671710

029 2085 820022




ZONE SENSORS (Continued from previous page)


Page Type




5 RM212 CO2 The CO2 at RM address 212 AI 10137 N/A Parts-Per-Million








FROST PROTECTION

11 Frost Prot. Fan Off Minimum time the supply fan will stop AV 10274 300 Seconds

in a frost protection state

12 Frost Prot.Temp Supply temperature at which frost AV 10275 4 Degrees-Celsius

protection becomes active

HIBERNATE

32 Hibernate Mode Unit is ready for hibernation. MSV 10241 Off Off/On

Resets on powercycle

PURGE MODE

33 Purge Active This input will enable purge mode MSV 10243 Off Off/On

14 Purge Fan Speed Purge Fan Speed AV 10304 60 Percent

14 Purge Min Temp The minimum temperature that AV 10305 12 Degrees-Celsius

will stop puge mode

25 Purge Time Schedule Purge Time Schedule SCH 10499 N/A N/A

35 Purge via Schedule Purge Time Schedule State MSV 10512 N/A Off/On

NIGHT COOL MODE

33 Night C Mode This input will enable night cool mode MSV 10242 Off Off/On

13 Night C Fan Speed The night cool fan speed AV 10281 60 Percent

13 Night C Min Temp The minimum temperature that will AV 10302 12 Degrees-Celsius

stop night cooling

25 Night C Schedule Night Cooling Schedule SCH 16014 N/A N/A

36 Night C Schedule Night Cool Schedule State MSV 16014 N/A Off/On

25 Night C Sample Daytime schedule for winter or SCH 15875 N/A N/A

summer decision making

36 Night C Sample Night Cool Sampling Schedule State MSV 16008 N/A Off/On

AUTO RUN-ON

31 Auto Run-on Auto run-on mode MSV 10217 Off Off/On

9 Auto-Run-on Maximum Run-on Max Time AV 10263 900 Seconds

Max Time

9 Auto-Run-on Scale Factor for automatic run-on time AV 10264 2 No Units

Scale Factor

23nuaire.co.uk



ALARM


Page Type

20 Fault Relay Cmd The state of the fault relay BO 10188 N/A Alarm/Normal

(Fault = De-energised)

9 Alarm Delay Alarm hold off period AV 10262 10 Seconds

22 Reset Alarms Changing this value will reset any BV 10332 FALSE True/False

latched alarms

19 Alarm Circuit 1 The state of Alarm Circuit 1 BI 10167 N/A Normal/Alarm

19 Alarm Circuit 2 The state of Alarm Circuit 2 BI 10170 N/A Normal/Alarm

12 High Temp Alarm Supply temp which will trip the AV 10277 50 Degrees-Celsius

high supply alarm

13 Low Temp Alarm Supply temp which will trip the AV 10280 8 Degrees-Celsius

low supply alarm

30 Low Temp Action Action taken when the low supply MSV 10211 Alarm Only Alarm only / Alarm and

alarm is engaged stop fans

35 Critical Alarm Unit is latched in critical alarm MSV 15309 N/A Normal/Alarm

36 Maint. Alarm Maintenance Alarm MSV 15310 N/A Normal/Alarm

36 XBC Sensor Alarm XBC Sensor Out of Range MSV 17009 N/A Normal/Alarm

37 Low SA-T Alarm Low Supply Air Alarm MSV 17011 N/A Normal/Alarm

37 High SA-T Alarm High Supply Air Alarm MSV 17012 N/A Normal/Alarm

37 Frost Alarm The unit is in frost mode MSV 17013 N/A Normal/Alarm

LCD EVENT SIGNAL

37 Ala(A Circ 1) For LCD Event Signal only MSV 17281 N/A Normal/Alarm

38 Nor(A Circ 1) For LCD Event Signal only MSV 17282 N/A Normal/Alarm

38 Ala(Low Supply Temp) For LCD Event Signal only MSV 17285 N/A Normal/Alarm

38 Nor(Low Supply Temp) For LCD Event Signal only MSV 17286 N/A Normal/Alarm

38 Nor(High Supply Temp) For LCD Event Signal only MSV 17289 N/A Normal/Alarm

39 Ala(High Supply Temp) For LCD Event Signal only MSV 17290 N/A Normal/Alarm

39 Ala(A Circ 2) For LCD Event Signal only MSV 17293 N/A Normal/Alarm

39 Nor(A Circ 2) For LCD Event Signal only MSV 17294 N/A Normal/Alarm

39 Ala(Frost) For LCD Event Signal only MSV 17316 N/A Normal/Alarm

40 Nor(Frost) For LCD Event Signal only MSV 17317 N/A Normal/Alarm

40 Ala(XBC Sensor) For LCD Event Signal only MSV 17320 N/A Normal/Alarm

40 Nor(XBC Sensor) For LCD Event Signal only MSV 17321 N/A Normal/Alarm


30. 11. 15. Leaflet Number 671710

FACTORY SETTINGS

28 Damper Override Override bypass damper position MSV 10204 Auto Auto/Heat Exchange/Bypass

33 Tacho PCB Fitted Is a “Taco Bell” PCB fitted MSV 10244 As per build Yes/No

22 Tuning Reset Resets the PID auto tuning loops BV 12880 FALSE True/False

29 Ignore PIR Sensors Ignore all MSTP network PIR sensors MSV 10208 No Yes/No

18 EF Max Volt The upper voltage for the extract fan AV 17273 10 volts

18 EF Start Volt The voltage required to start the AV 17274 1 volts

extract fan

18 SF Max Volt The upper voltage for the supply fan AV 17275 10 volts

18 SF Start Volt The voltage required to start AV 17276 1 volts

the extract fan

40 SW-FAC2612-2-4A Strategy Version MSV 17340 Off Off/On

NETWORK CONNECTION DIAGRAM Figure 16:

029 2085 820024


8.0 NETWORKING

(Sensor Actuator) SA bus

Ethernet IP

MSTP to IP Router

(Field Controller) FC bus

For best results, use a linear network and switch on the EOL resistors at each end of the FC bus.

(Sensor Actuator) SA bus

25nuaire.co.uk


9.0 FC BUS DEVICES

30. 11. 15. Leaflet Number 671710

9.1 FAC CONTROLLER Figure 17:A FAC controller is used to control the unit. The controller can connect to

the FC bus via the 4 pin FC connection.

MAC Address

The physical MAC address of the FAC adjustable between 4-127 and is set via

the DIP switch on the front of the unit. When multiple controllers are

connected on the same FC bus, each controller ‘s MAC address must be

unique.

BACnet Instance Number

The BACnet instance number of the FAC is factory-set to a random unique

value from 0-4,194,304. This ensures that every controller will have a unique

BACnet instance number on any possible network.

End Of Line (EOL) Resistor

When an FAC controller is used as a terminator at the end of a FC bus line, the

EOL resistor dip switch can be switched on for best performance.

Fault Light Status

Blink 5Hz - Not all possible room modules are connected. This is normal.

Blink 2Hz - Startup in progress

Off Steady - No Faults

On Steady - No Software

9.2 BACNET IP TO MS/TP ROUTER (ESCO-IPN) Figure 18:The BACnet IP to MS/TP Router exchanges information between networks

and allows the controller to communicate on an IP network. One router is

required for each MS/TP network.

The BACnet router has a USB 2.0, Type B receptacle which is only used to

obtain power from a computer or USB adapter. A mains adapter and cable is

supplied.

The router connects to the FC bus via screwed terminals.

Address Type Default Address

IP Address 192.168.92.68

Subnet Mask 255.255.255.0 (/24)

A reset switch is available inside a small hole located on the side of the case.

If you press the reset switch with a paper clip (or similar device) for at least 1

second, the switch resets to the default values of the IP address, gateway

address, and netmask. After you use the reset switch, you need to reboot the

router. The BACnet/IP to MS/TP Router contains a Web server. You can access

the Web server from any Internet-compatible computer on the local network

To configure the router, you need a computer with an Ethernet connection,

router, and standard Web browser.

9.3 INTERCONNECTIONThe FC bus connects via the following MSTP cabling:

ESCO-MSTPC30M Ecosmart Connect MSTP cable reel 30m


Suggested Wiring Colouring

White +

Green -

Black COM

Red Unused

Note: On the SA Bus, the + and - wire are one twisted pair, and the COM and

SA PWR are the second twisted pair of wires.

These cannot be used with RJ12 connections and must be stripped and

connected using screwed terminals. The shield must be earthed at the control

panel end only and be made continuous along the bus length.

Room Modules must not be fitted more than 150metres (cable length) from

the controller.

(MS/TP)

9.4 TOUCH SCREEN (ESCO-LCD) FIELD ADVANCED DISPLAY (FAD)The ESCO-LCD is a user friendly operator interface featuring BACnet®

communication and a colourful, graphic display with touch-screen

interface. It is powered by 12-24VAC / VDC and connected via the FC bus.

9.4.1 NAVIGATION

029 2085 820026


9.0 FC BUS DEVICES

Cancel – Quit and moves to

the previous section

Home – Shortcut to the

configured Home Page

Back – Moves to the

previous page in the same

section

Forward – Moves to the

next page in the same

section

Enter – Applies changes

Device Name FAD0351Device ID 127MAC Address 127Descriptions Field Advanced DisplayBaud Rate 38400Max Info Frames 4

Network Settings

TL-BRTRP-0 0 1

Nuaire XBC ESC 4 0909501


Enable Off MSV10218

Setpoint 22°C AV 10309

Heat Boost Off MSV10205

Fan Boost Off MSV10240

22.2oC

Settings

Favourites

Temperature

Network

Target

Figure 19:

Figure 20:

MAC Address

BACnet Device ID

27nuaire.co.uk


Device NameMac Address 4Device ID 0

Select Target Device

Object Type AIObject ID 10050

Select Target Device

TL-BRTRP-0 0 1



Name Description Status Function

Write ID

9.0 FC BUS DEVICES

30. 11. 15. Leaflet Number 671710

Figure 21:

Network Page Description Object Type Object ID

17 Room Air Temp AV 11296

17 CO2 Level AV 13980

17 Humidity AV 14297

17 Active Setpoint AV 14534

1 Fresh Air Temperature AI 10008

9.5 QUICK SETUPThe following section explains how to quickly set-up the FAD with a target

object and some favourites.

9.5.1 SETTING UP A TARGET OBJECTTarget objects allow the user to view a “target” device and object within

the entire network.

To choose a target object

l Navigate to the settings page.

l Select the right arrow four times to reach the

Select Target Device screen.

l Enter the physical MAC address* of the controller (Device names or

BACnetIDs can also be used but MAC addresses are shorter)

l Select the right arrow once

l Enter the object type of the required object (Eg AI, AO, MSV)**

l Enter the BACnet ID** of the object. (0-4194304)

l Select the home icon.

* This is the setting of the DIP switch on the front of the FAC controller.

This can also be discovered by browsing to the network screen while ID is

selected in the View Config settings screen.

** Popular object details are listed below, or use the network browser or see

“Exposed BACnet Object List” for a full list.

029 2085 820028


9.0 FC BUS DEVICES

Enable On

Fan Boost Off

Heat Boost Off

Trickle Mode Off


Write ID

Backlight Stand-By-OFFHome Page TargetService Password 0User Password 0Stand By DarkStand By Timer 0

Display Settings

View Config

Figure 22:

9.5.1 SETTING UP A TARGET OBJECT CONT.To set the target object page as the default home page.

l Navigate to the settings page.

l Select the right arrow twice to reach the display settings screen.

l Select Home Page

l Select Target

l Select the enter icon

l Select the home icon

Note: The BACnet type & ID will be displayed on the target page if ‘ID’ is

selected on the ‘View Config’ settings screen.

Note: If the target page is selected as the home page and a security

password is set the home page will be locked. The only way to exit the

target screen in this case is to press the Nuaire logo to the top right of

the screen for 5 seconds.

9.5.2 SETTING UP FAVOURITESThe “Favourite” screen displays a list of favourite objects.

To add or remove favourites.

l Navigate to the settings page

l Select the right arrow six times to reach the View Config screen.

l Select the function tickbox and favourite star.


l Navigate to the network page.

l Select the appropriate controller

l Navigate to the required object. See “Exposed BACnet Object List”

for a full list.

(Pressing for 3 seconds on an object will display the full name.)

l Select the star to turn it black

l Navigate and select any other required favourites

l When finished, navigate back to the View Config screen in the settings

section and remove the function tick

Favourites can be removed by browsing the favourites page, selecting an

object and then selecting the trashcan.

Favourites can be re-ordered by uploading the favourite settings to a usb

memory stick and changing the order of the items in the favourites.csv file.

This file can then be downloaded back to the LCD.


17 Room Air Temp AV 11296

17 CO2 Level AV 13980

17 Humidity AV 14297

17 Active Setpoint AV 14534

32 Enable MSV 10218

25 Time Schedule SCH 10496

32 Fan Boost MSV 10240

28 Heat Boost MSV 10205

1 Fresh Air Temperature AI 10008

15 Software Setpoint AV 10309

(MS/TP)

29nuaire.co.uk



Display Settings


Display Settings


Write ID

View Config

NS Zone Temp 0°C

NS Zone 1 Temp 0°C

NS Zone 2 Temp 0°C

NS Zone 3 Temp 0°C


Write ID

View Config

9.0 FC BUS DEVICES

30. 11. 15. Leaflet Number 671710

Figure 23:

Note: If the target page or favourite page is selected as the home page and a

security password is set, the home page will be locked. The only way to exit

the target screen in this case is to press the Nuaire logo to the top right of

the screen for 5 seconds. A security password will then be requested to

access the main menu. The security password timeout is the same as the

standby timer and set via the display settings.

9.5.3 SETTING UP SECURITY

9.5.3.1 TO SET A USER PASSWORDl Navigate to the settings page

l Select the right arrow twice to reach the display settings screen

l Change the user password a 4 digit number

l The user password will now be requested each time a locked object

is written

l The user password is also needed to exit the target page. (When the home

page is set to target)

9.5.3.2 TO SET A SERVICE PASSWORDl Navigate to the settings page

l Select the right arrow twice to reach the display settings screen

l Change the service password a 4 digit number

l The service password will now be requested each time the settings page

is accessed

9.5.3.3 TO DISABLE WRITING OF VALUESl Navigate to the settings page

l Select the right arrow six times to reach the View Config screen

l De-select the write tickbox. All controller points are now read only

l A service password will need to be set to stop users re-enabling the

write function

9.5.3.4 TO ALLOW BASIC VALUES TO BE WRITTEN BY THE USERl Navigate to the settings page

l Select the right arrow six times to reach the View Config screen

l Select the function tickbox and lock


l Navigate to the network page.

l Select the appropriate controller.

l Navigate to the required object. See “Exposed BACnet Object List”

for a full list.

l Select any values that need password protection. A black lock indicates

a locked value

l When finished, navigate back to the View Config screen in the settings

section. Remove the Function tick and enable writing of values

l A user password will need to be set to stop writing of locked values.

It is recommended that all values are locked except the following;


32 Enable MSV 10218

25 Time Schedule SCH 10496

32 Fan Boost MSV 10240

28 Heat Boost MSV 10205

15 Software Setpoint AV 10309

029 2085 820030

9.0 FC BUS DEVICES

9.5.4 SCHEDULING PAGEStandard BACnet schedule objects can be adjusted in the same way

as any other BACnet object.

The BACnet schedule function consists of an array of singular time values

with a corresponding ON/OFF state. In order to end an ‘ON’ period, a new

value must be created with a value of ‘OFF’. This new value’s time can be

adjusted to the desired end time.

Select a schedule object via object browser or the favourites menu to access

the following screens.

9.5.5 ALARM LOGWhen an XBC alarm changes state, a signal is sent to the LCD display and

logged on the alarm page. If there are items on the alarm page the

standard top left page icons change to one of the following, depending

on the current page. The alarm page can be accessed by selecting the

alarm icon.

Alarm events are logged with a date and time.

‘Nor’ represents a change to a normal state.

‘Ala’ represents a change to an alarm state.

The text in parentheses denotes the alarm the event applies to. The log can

hold up to 40 events.

Logged alarm events can be deleted by using the delete icon. If all events are

deleted, alarm states can still be checked by navigating to the BACnet alarm

objects via the network browser page. See the BACnet alarm list for alarm

objects.

The LCD can be set to sound a continuous beep when a new item is added to

the alarm log. This beep is silenced by any user interaction, but the alarm event

is still logged. This option can be changed via the settings page.

9.5.6 BACKUPThe LCD settings, favourites and locked items can be backed up to a usb drive

by plugging a usb into the rear of the LCD. The screen will automatically

change to a download screen. Select the item required and choose upload.

To download data to the LCD select the data type and choose download.

If a user or service password is forgotten, they can be reset by re-downloading

a backup file to the LCD that has no set password. It is recommended that a

backup is made of a LCD with no password set.

Time Schedule 10-10-15 15.39

OFF ON OFF

ON

Time Schedule **-**-** **-**-**

Weekly Schedule.

Effective Period** Denotes All.

Add Period.

Selected Period

Remove Selected Period.

Selected Period’sTime & State.

Selected Day.

Save Change.


2 Nor(A Cir 2) Nuaire XBC 09:47 16-10-15

1 Ala(A Cir 2) Nuaire XBC 09:44 16-10-15

View Config

1 / 1

Figure 24:

(MS/TP)

31nuaire.co.uk


Parameter Name Description Default Setting

Device Name It defines the BACnet Device Object Name FAD0351

Device ID It defines the BACnet Device Object Identifier 127

MAC Address MSTP Address of FAD 127

Descriptions BACnet Description of FAD Field Advanced Display

Baud Rate It defines the FAD communication speed 38400

over the BACnet local network.

Max Info Frames It defines the BACnet Device Object Max_Info_Frames 3

Adjust Priority The Adjust priority parameter defines with which 16

priority the display will command AV / BV / MV values.

Override Priority The Override priority parameter defines with which 8

priority the display will command AO / BO / MO values

Page Refresh Time It defines the polling speed at which the FAD will refresh 30 sec

the values shown on the screen

Max Master This parameter represents the value of the Max_Master 127

property of the node's Device object

APDU Time The APDU Timeout property defines the amount of time, 3

in seconds, the FAD waits for responses from other devices.

9.6.2 DISLAY SETTINGS PAGE


Backlight It defines whether the back light remains ON or turns OFF Stand-By ON

during Standby

Homepage It defines which page to show at power up or pressing the Main Menu

“Home” shortcut button

Service Password Password required to enter settings page 0

User Password Password Required to change locked values 0

(All values are locked by default)

Stand By It defines the behaviour of the display once the “Stand By Timer” -

has expired without interactions from the user

Stand By Timer It defines the inactivity period, in minutes, required to force 0 min

the display in Stand By mode and for both Service and User

passwords expiration. Defining this parameter to Zero, the

passwords request (if any) is prompted at any access to pages

requiring them

Feedback Sound It defines whether the device shall provide a sound feedback OFF

during user interaction

Alarm It defines whether the device shall provide a sound feedback OFF

when receiving a new Alarm. The notification sound can be

continuous (ON) or intermittent (BEEP)

Date It adjusts settings related to the Day, Month and Year of the

FAD integrated clock

Time It adjusts settings related to the Hour and Minute of the


Day Of Week It adjusts settings related to the Day of Week (1-7) of the


9.0 FC BUS DEVICES

30. 11. 15. Leaflet Number 671710

9.6 SETTINGS PAGESThese set of pages allow the user to configure the technical functions of

the LCD both from the BACnet and user interface perspectives.

The settings page requires a service password for access.

9.6.1 NETWORK SETTINGS PAGEAllow the user to discover all devices connected on the MS/TP network and

browse all objects exposed within these devices.

029 2085 820032


9.0 FC BUS DEVICES

9.6.3 SELECT TARGET DEVICE PAGE


Device Name Name of the device where the object resides

MAC Address The MSTP address of the device where the object resides

Device ID The BACnet ID of the device where the object resides

Object Type The object type

Object ID The object BACnet ID

9.6.4 VIEW CONFIG


Name /Description Chooses whether objects are described by their name Name

or description

Write Allows editing of objects Yes

ID This will display the BACnet ID next to all BACnet objects Yes

on the network, favourites and target pages

Function This option allows objects to be added to the favourite or None

(Favourite/Lock) locked list. Once it is selected, navigate to the network

page and choose which objects are required.

A user password is required to change any locked

object, if set. All values are unlocked by default.

9.7 MULTIPLE CONTROLLERSWhen accessing the Network View the FAD launches a Network Discovery

function. The purpose of this function is to find other BACnet devices

residing on the same MS/TP trunk. The maximum number of devices

supported by the FAD discovery function is 32.

9.8 WIRING

There are two ways of connecting the LCD.

1. Connected to the FC bus using screwed terminals. A separate power

supply is required.

2. If the controller is standalone, the LCD display can be connected to the

RJ12 FC bus port on the front of the FAC controller.

This FC port will also power the LCD, so in this case, a separate power

supply is not required.

One of the following cables is required to do this.

12

ON

67

12

34

5 +-

12...24 VAC

12...24 VDC

BACnet

MS/TP

+-

Terminal Block Description

1-3 Unused

4 Power Supply (-) 12...24 VAC / VDC

5 Power Supply (+) 12...24 VAC / VDC

6 BACnet MS/TP Port (RT-)

7 BACnet MS/TP Port (RT+)

Programming USB Port

DIP Switch 1 BACnet MS/TP Line Terminator (End of Network

120Ω resistor switch)

DIP Switch 2 Unused

ESCO-LCD-3M Ecosmart-Connect LCD RJ12 Connection Cable 3m





(MS/TP)

33nuaire.co.uk


10.0 SA BUS DEVICES

10.1 ROOM MODULES Figure 25:Room Modules are electronic, wall-mountable sensors designed to work

directly with the Nuaire control panel.

Room modules are automatically detected and require no set-up. The majority

of RM modules monitor room temperature; however, options are available to

also monitor zone humidity, carbon dioxide (CO2), local temperature setpoint

adjustments, PIR, and other variables. This data is transmitted to a controller

on the Sensor Actuator (SA) Bus.

10.2 FEATURES Figure 26:

Backlit LCD Display - All LCD display versions of Room Modules include a dial

to adjust room setpoint. While the setpoint is being adjusted the backlight will

switch on and the display will update to show the setpoint. While inactive the

display will revert to display the current room temperature. The occupancy

status is also displayed on the LCD. On fan speed override models the fan

speed and override status is also displayed. A maintenance icon will display if

there is a sensor network error.

Service Port - A RJ12 service port is provided at the base of each Room

Module. This allows the temporary connection of an extra module to the

sensor network.

Fan Speed Override/Room Humidity- This button cycles through fan speed

override settings.

Room Humidity - The ESC-RM-2-TDH-120 model includes a push button on

the face of the network sensor to allow occupants to view the temperature

and relative humidity of the zone. Pressing the push button toggles between

temperature and RH on the LCD. The LCD defaults to temperature 5 seconds

after the push button is released. Following this procedure to permanently

change the default display:

1. If the display backlight is off, press and release the push button to

illuminate the backlight. If the display backlight is already on, proceed

to Step 2.

2. Press and hold the push button for 5 seconds to switch to the desired

default display (either temperature or RH). Note: The desired default

display will flash for 5 seconds. After the display stops flashing, the new

default display is in effect.

3. Release the push button; the desired display is now the new default

display.

The humidity setpoint cannot change via RM sensors. This must be changed

through a commissioning tool.

10.3 INSTALLATIONLocation Considerations

Locate the network sensor:

l on a partitioning wall, approximately 5 ft (1.5 m) above the floor in a

location of average temperature

l away from direct sunlight, radiant heat, outside walls, outside doors, air

discharge grills, or stairwells; and from behind doors

l away from steam or water pipes, warm air stacks, unconditioned areas (not

heated or cooled), or sources of electrical interference

To remove the rear cover

1. Use a pozi screwdriver to loosen the screw on the top of the unit.

2. Insert a coin into the slot next to the security screw location, pressing the

tab that keeps the unit closed. Then carefully pry the top edge of the sensor

assembly away from its mounting base and remove.

Modular Jack:

For the modular jack, simply snap the wiring plug into the jack. A modular jack

requires a straight-through, one-to-one connection (not a crossover).

See interconnection section for details.

Relative Humidity

Fan Mode (AUTO-OFF,low, medium, high)

Celsius Temperature

Fahrenheit Temperature

Loss off NetworkConnection Symbol

Occupied/Unoccupied Mode

LCD Display

Setpoint Adjust

Service Port

oF/oC Toggle(some models)

Fan Speed Override/Relative Humidity(some models)

30. 11. 15. Leaflet Number 671710

029 2085 820034


10.0 SA BUS DEVICES

10.4 ROOM MODULES WIRING Figure 27:Screw terminal wiring:

If RJ12 cables are not used, the screw terminal connections on the

Room Modules can be used.

SA BusScrew Terminal BlockNetwork Sensor

Bus Com SA+ SA-

SA Power from Controller (15 VDC)

+ -

CO

M

SA PWR

Standard Sensor Wiring.

CO2 Sensor Wiring.

SA Bus 24V(Brown) (Grey)

Screw Terminal BlockNetwork Sensor

Bus Com 24 VAC/VDC Power Supply

SA+ SA-

SA Power from Controller (15 VDC)

+ - SA CO

M

SA PWR

HO

T

CO

M

The CO2 sensor can connect either through screw terminals or the modularjack but a 24VAC/DC supply must be provided in either case.

35nuaire.co.uk

10.0 SA BUS DEVICES


80

80

35

120

8035

10.5 DIMENSIONS ROOM MODULES (MM) Figure 28:

30. 11. 15. Leaflet Number 671710

029 2085 820036


10.0 SA BUS DEVICES

Group 2Max of 3PerController

10.6 AVAILABLE ROOM MODULESThe following room modules are available.

Group Nuaire Size Temp- Humidity LCD, PIR Fan Fan CO2 Network NotesPart (mm) erature Sensor Setpoint Speed Status Sensor AddressNumber Sensor Adjust & Override Display Range

OccupancyDisplay

Group 1Max of 1 ESCO-TDFS 80x80 YES YES YES YES 199 Max of 1 Per (fixed) per Controller controller

ESCO-TS 80x80 YES 200-203

ESCO-THS 80x80 YES YES 200-203

ESCO-TDS 80x80 YES YES 200-203

ESCO-TDHS 80x80 YES YES YES 200-203 Relative Humidity is not displayed

ESCO-TPL 80x120 YES YES 200-203

ESCO-THPL 80x120 YES YES YES 200-203

ESCO-TDPL 80x120 YES YES YES 200-203

ESCO-TDHPL 80x120 YES YES YES YES 200-203 Relative Humidity is not displayed

ESCO-TDHL 80x120 YES YES YES 200-203 Relative Humidity is displayed

ESCO-PL 80x120 YES 200-203

ESCO-CL 120x80 YES 212-219 Powered via separate 24vac/dc supply

37nuaire.co.uk


10.0 SA BUS DEVICES

2 1

On(Closed)

Off(Open)

2 14

On(Closed)

Off(Open)

30. 11. 15. Leaflet Number 671710

10.7 SENSOR ADDRESSINGESCO-TDFS has a fixed device address of 199 on the SA Bus. The address can

be changed on other models via DIP switches on the PCB rear.

The designation of each address is shown in the following table.

Address Range Type Module Type

199 Fixed Multi-function (with Fan

Speed Override)

200-203 Adjustable Multi-function

212-219 Adjustable Room CO2 Sensor Module

Each sensor on the SA bus must have a unique address. The default controller

strategy is preconfigured to automatically detect all Room Modules on the

network and react accordingly.

200-203 Address Switch Settings

Address Switch Settings

Switch 2 Switch 1

200 OFF OFF

201 OFF ON

202 ON OFF

203 ON ON

212-219 Address Switch Settings

Address Switch Settings

Switch 4 Switch 2 Switch 1

212 OFF OFF OFF

213 OFF OFF ON

214 OFF ON OFF

215 OFF ON ON

Not supported ON ANY ANY

10.8 ROOM MODULES TECHNICAL SPECIFICATIONS

Supply Voltage 15VDC (Powered from SA bus)

Temperature Measurement Range 0 to 40°C

Humidity Measurement Range 0 to 100% (Full)

10 to 90% (Calibrated)

Temperature Sensor Type Local 1k ohm Platinum

Resistance Temperature

Detector (RTD);

Class A per IEC 60751

Humidity Sensor Type Thin Film Capacitive Sensor

Temperature Resolution (Models with ±0.5C°

LCD)

Default Temperature Setpoint 10°C to 30°C

Adjustment Range

PIR Occupancy Sensor Motion Detection Minimum 94 Angular Degrees

up to a Distance of 15 ft (4.6m);

Based on a clear line of sight

Ambient Operating Conditions 10°C to 30°C 10 to 90% RH

(Temp Probe -10°C to 60°C)

Ambient Storage Conditions -20 to 60°C 5 to 95% RH

CO2 Sensor Warmup time Less than 1 Minute; less than

10 minutes for full accuracy

(MS/TP)

029 2085 820038

6

5

4

3

2

1

Power (15 VDC)

Bus and Power Common

Power (15 VDC)


SA Bus -

SA Bus +

Controller

RJ12 Plug

3-way female RJ12 adaptor

RJ12 Sensor jack

Room Module Room Module

Cable type: Pre-fabricated 3 twisted pair with RJ12 plugs, 26AWG


10.0 SA BUS DEVICES

Sensor, SA Bus (RJ-12 Modular Jack)

3-way female RJ12 adaptor

RJ12 Plug RJ12 Plug

3metres Max

3metres Max

Room Module

Power (15 VDC)


Power (15 VDC)


SA Bus -

SA Bus +

6

5

4

3

2

1

10.9 INTERCONNECTIONThe sensors or other devices on the SA bus network connect either by modular

RJ12 connections or by screwed terminals using plain ended cable. All sensors

are fitted with both.

8.2.3.1 MODULAR CABLE (UP TO 30METRES)The Room Modules can connect using a 24AWG twisted 3-pair cable with

RJ12 connections over the Sensor Actuator (SA) bus. the following items are

available.

ESCO-C3M 3m Prefabricated sensor cable with modular jacks





ESCO-2WA 3-port adapter

ESCO-3WA 2-port extension adapter


the controller when using this connection method.

MODULAR JACK NETWORK Figure 29:

39nuaire.co.uk


Controller

Screwed Terminal Screwed Terminal

SA Bus ScrewedTerminal (Brown)

Room Module Room Module

Cable type: Plain-ended shielded 2 twisted pair 22AWG

Room Module

Screwed Terminal

30. 11. 15. Leaflet Number 671710

10.0 SA BUS DEVICES

10.10 PLAIN CABLE (30 TO 150 METRES)If a Room Module is to be fitted more than 30metres (cable length) from a

controller, the following cable is recommended.



Note: On the SA Bus, the + and - wire are one twisted pair, and the COM and

SA PWR are the second twisted pair of wires.

These cannot be used with RJ12 connections and must be stripped and

connected using screwed terminals. The shield must be earthed at the control

panel end only and be made continuous along the bus length.


the controller.

SCREWED TERMINAL NETWORK 150M MAX NETWORK LENGTH Figure 30:

029 2085 820040


11.0 APPENDIX TO SOFTWARE STRATEGY

11.1 BACNET OBJECT LIST (BY INSTANCE NUMBER)

LCD Browser Name Description Type BACnet Units Default

Page Object Value

Instance

Number

1 Supply Air Temp (B) The supply air temperature AI 10005 Degrees-Celsius N/A

1 Fresh Air Temp (H) The fresh air temperature AI 10008 Degrees-Celsius N/A

1 Extract Air Temp (C) The extract air temperature AI 10011 Degrees-Celsius N/A

2 RM199 Humidity The Humidity at RM address 199 AI 10017 Percent-Relative-Humidity N/A

2 RM199 Temp The temperature at RM address 199 AI 10029 Degrees-Celsius N/A

2 IN4 The 0-10 voltage at input 4 AI 10032 volts N/A

2 IN5 The 0-10 voltage at input 5 AI 10035 volts N/A









5 RM212 CO2 The CO2 at RM address 212 AI 10137 Parts-Per-Million N/A








7 Cooling Output The 0-10V signal to the cooling output AO 10173 Percent N/A

7 Extract Fan Output The 0-10V signal to the extract fan AO 10176 volts N/A

7 Heating Output The 0-10V signal to the heating output AO 10179 Percent N/A

7 Supply Fan Output The 0-10V signal to the supply fan AO 10182 volts N/A

8 RM199 Setpoint The setpoint at RM address 199 AV 10023 Degrees-Celsius N/A





9 Alarm Delay Alarm hold off period AV 10262 Seconds 10

9 Max Auto-Run on Max-Time Maximum Run-on Max Time AV 10263 Seconds 900

9 Auto-run-on Scale Factor Scale Factor for automatic run-on time AV 10264 No units 2

10 CO2 Target Target CO2 Value AV 10265 Parts-per-million 650

10 Deadband Dead band for temp control AV 10266 Degrees-Celsius 3

10 Run-on (Enable) Run-on timer value AV 10267 Seconds 0

10 Extract Fan Max Individual fan maximum speed setting AV 10268 Percent 100

11 Extract Fan Min Individual fan minimum speed setting AV 10270 Percent 20

11 Run-on (Boost) Boost run-on time AV 10272 Seconds 0

11 Fan Boost Speed Fan boost speed AV 10273 Percent 100

11 Frost Prot. Fan Off Minimum time the supply fan will stop AV 10274 Seconds 300

in a frost protection state

41nuaire.co.uk





Page Object Value

Instance

Number

12 Frost Prot. Temp Supply temperature at which frost protection AV 10275 Degrees-Celsius 4

becomes active

12 Heat Boost Setpoint Heater Boost Setpoint AV 10276 Degrees-Celsius 35

12 High Temp Alarm Supply temp which will trip the high AV 10277 Degrees-Celsius 50

supply alarm

12 Humidity Target Relative Humidity Target AV 10278 Percent-relative-Humidity 50

13 IO Damper Delay Delay between starting the fan relay and the AV 10279 Seconds 0

fan output

13 Low Temp Alarm Supply temp which will trip the low supply alarm AV 10280 Degrees-Celsius 8

13 Night C Fan Speed The night cool fan speed AV 10281 Percent 60

13 Night C Min Temp The minimum temperature that will stop AV 10302 Degrees-Celsius 12

night cooling

14 Pressure Target Target pressure value AV 10303 Pascals 400

14 Purge Fan Speed Purge Fan Speed AV 10304 Percent 60

14 Purge Min Temp The minimum temperature that will stop AV 10305 Degrees-Celsius 12

night cooling

14 RTC Boost Band The Return Temperature Control Boost Band AV 10306 Degrees-Celsius 15

15 RTC Max Supply Temp Maximum supply temp when in RTC mode AV 10307 Degrees-Celsius 35

15 RTC Min Supply Temp Minimum supply temp when in RTC mode AV 10308 Degrees-Celsius 12

15 Software Setpoint Software Setpoint AV 10309 Degrees-Celsius 22

15 STC H/C Pref STC Heat/Cool Pref AV 10310 No units 50

16 STC HX Efficiency STC HX Efficiency AV 10311 No units 0.8

16 Supply Fan Max Individual fan maximum speed setting AV 10312 Percent 100

16 Supply Fan Min Individual fan minimum speed setting AV 10314 Percent 20

16 Trickle Deadband Setpoint deadband used when trickling with AV 10316 Degrees-Celsius 5

no enable signal.

17 Room Air Temp The room air temperature AV 11296 Degrees-Celsius N/A

17 CO2 Level The CO2 Level AV 13980 ppm N/A

17 Humidity The Humidity Level AV 14297 % RH N/A

17 Active Setpoint The setpoint currently used AV 14534 Degrees-Celsius N/A

18 EF Max Volt The upper voltage for the extract fan AV 17273 Volts 10

18 EF Start Volt The voltage required to start the extract fan AV 17274 Volts 1

18 SF Max Volt The upper voltage for the supply fan AV 17275 Volts 10

18 SF Start Volt The voltage required to start the extract fan AV 17276 Volts 1

19 SL Enable The state of the enable input (IN8) BI 10161 Off/On N/A

19 SL2 Input The state of the configurable input (IN9) BI 10164 Off/On N/A

19 Alarm Circuit 1 The state of Alarm Circuit 1 BI 10167 Normal/Alarm N/A

19 Alarm Circuit 2 The state of Alarm Circuit 2 BI 10170 Normal/Alarm N/A

20 Bypass Damper Cmd The controller’s signal to the bypass damper. BO 10185 Open/Close (Open = HX, N/A

(Close=Bypass) Close = Bypass)

20 Fault Relay Cmd The state of the fault relay. (Fault = De-energised) BO 10188 Alarm/Normal N/A

20 Fan Enabled Cmd The state of the fan enabled relay BO 10191 Off/On N/A

20 Cooling Demand Cmd The state of the cooling demand relay BO 10194 Off/On N/A

30. 11. 15. Leaflet Number 671710

029 2085 820042





Page Object Value

Instance

Number

21 Heating Demand Cmd The state of the heating demand relay BO 10197 Off/On N/A

21 RM199 Occupancy The occupancy status at RM address 199 BV 10020 Unoccupied/Occupied N/A

Status


Status



Status

22 RM203 Occupanc The occupancy status at RM address 203 BV 10110 Unoccupied/Occupied N/A

Status

22 Reset Alarms Changing this value will reset any latched alarms BV 10332 True/False FALSE

22 Tuning Reset Resets the PID auto tuning loops BV 12880 True/False FALSE

23 Local Calendar CAL 10496 N/A

23 8-1/Boot 8-1/Boot - N/A

23 8-1/Main 8-1/Main - N/A

23 8-1/Archive 8-1/Archive - N/A

24 8-1/Static 8-1/Static - N/A

24 8-1/Dynamic 8-1/Dynamic - N/A

24 8-1/Flash_Memory 8-1/Flash_Memory - N/A

24 Notification Notification - N/A

25 Time Schedule Local Time Schedule SCH 10496 N/A

25 Purge Time Schedule Purge Time Schedule SCH 10499 N/A

25 Night C Sample Daytime schedule for winter or summer SCH 15875 N/A

decision making

25 Night C Schedule Night Cooling Schedule SCH 16014 N/A

26 RM199 Fan Speed Fan Speed Override Status of RM199 MSV 10014 Off/Auto/Low/Medium/HIgh N/A

26 RM199 Occ Display Occupancy Display at RM address 199 MSV 10044 Occupied / Unoccupied N/A





27 0-10V CO2 Range CO2 sensor output range MSV 10200 0-2,000ppm/0-4,000ppm N/A

/0-5,000ppm/0-10,000ppm

/0-20,000ppm

27 CO2 Sensor Op CO2 sensor operation MSV 10201 Average CO2/Max CO2 N/A

/Ignore CO2

28 SL2 Mode Set the function of switched live 2 MSV 10202 None/Fan Boost Fan Boost

/Heater Boost

28 Cooling Type Set the type of cooling fitted MSV 10203 None/Cold Water/DX None

28 Damper Override Override bypass damper position MSV 10204 Auto/Heat Exchange/Bypass Auto

28 Heat Boost Software enabled Heater boost MSV 10205 Off/On Off

(MS/TP)

43nuaire.co.uk





Page Object Value

Instance

Number

29 Heating Type Set the type of heating fitted MSV 10206 None/LPHW/Electric As per

Build

29 H Sensor Op Humidity Sensor Operation MSV 10207 Average CO2/Max CO2 Average

/Ignore Humidity RH%

29 Ignore PIR Sensors Ignore all MSTP network PIR sensors MSV 10208 Yes/No No

29 IN4 Function Function of the UI4 input MSV 10209 None/Fan Speed Control None

EGG

0-10V CO2 Sensor




30 IN5 Function Function of the UI5 input MSV 10210 None/Fan Speed Control None

EGG

0-10V CO2 Sensor




30 Low Temp Action Action taken when the low supply alarm is engaged MSV 10211 Alarm only/Alarm and Alarm Only

stop fans Alarm Only

30 0-10V Press. Range Pressure sensor range MSV 10212 0-25Pa/0-50Pa /0-100Pa

/0-300Pa /0-500Pa /0-1000Pa

/0-1600Pa /0-2500Pa

/0-3000Pa 0 to 1000Pa

30 P sens. Op Pressure sensor operation MSV 10213 Average Value /Max Value Average

Value

31 SetPoint Op Setpoint operation MSV 10214 Last Value Changed Last Value

/Software Only Changed

31 T Sens. Op Temperature sensor operation MSV 10215 NS Average/Return Air Only NS Average

/NS & Return Average

31 0-10V Temp Range Temperature sensor range MSV 10216 0 to 50°C /0 to 40°C 0 to 50°C

/0 to 100°C /0 to 80°C

/0 to 90°C

31 Auto Run-on Auto-run on mode MSV 10217 Off/On Off

32 Enable Software enable switch MSV 10218 Off/On Off

32 Enable via Schedule Enabled via Schedule MSV 10219 Off/On N/A

32 Fan Boost Software enabled Fan boost MSV 10240 Off/On Off

32 Hibernate Mode Unit is ready for hibernation MSV 10241 Off/On Off

33 Night C Mode This input will enable night cool mode MSV 10242 Off/On Off

33 Purge Active This input will enable purge mode MSV 10243 Off/On Off

33 Tacho PCB Fitted Is a “Taco Bell” PCB fitted MSV 10244 Yes/No As per

Build

33 Temp Control Mode Temperature control mode MSV 10245 Supply Temperature Ctrl Supply

/Return Temperature Ctrl Temp.

Control

34 Test (Fan) Fan Test (Factory Use Only) MSV 10246 Off/On N/A

34 Test (Heater) Heater Test (Factory Use Only) MSV 10247 Off/On N/A

34 Test (Override Fan) Overtemp Test (Factory Use Only) MSV 10248 Off/On N/A

34 Test (Wiring) Wiring Test (Factory Use Only) MSV 10249 Off/On N/A

30. 11. 15. Leaflet Number 671710

029 2085 820044





Page Object Value

Instance

Number

35 Trickle Mode Enable trickle mode MSV 10250 Off/On Off

35 Purge Time Schedule Purge Time Schedule MSV 10512 Off/On N/A

35 RM199 Fan Display Fan Speed Override Display at MSV 14703 No Status/Off/Low/Medium N/A

RM address 199 /High/Auto-Off/Auto-Low

/Auto-Medium/Auto-High

35 Critical Alarm Unit is latched in critical alarm MSV 15309 Normal/Alarm N/A

36 Maint. Alarm Maintenance Alarm MSV 15310 Normal/Alarm N/A

36 Night C Sample Night Cooling Sample Schedule MSV 16008 Off/On N/A

36 Night C Schedule Night Cooling Running Schedule MSV 16014 Off/On N/A

36 XBC Sensor Alarm XBC Sensor Out of Range MSV 17009 Normal/Alarm N/A

37 Low SA-T Alarm Low Supply Air Alarm MSV 17011 Normal/Alarm N/A

37 High SA-T Alarm High Supply Air Alarm MSV 17012 Normal/Alarm N/A

37 Frost Alarm Frost Alarm MSV 17013 Normal/Alarm N/A

37 Ala (Acir 1) For LCD Event Signal Only MSV 17281 Normal/Alarm N/A

38 Norm (A Cir 1) For LCD Event Signal Only MSV 17282 Normal/Alarm N/A

38 Ala (Low Supply Temp) For LCD Event Signal Only MSV 17285 Normal/Alarm N/A

38 Norm (Low Supply Temp) For LCD Event Signal Only MSV 17286 Normal/Alarm N/A

38 Norm (High Supply Temp) For LCD Event Signal Only MSV 17289 Normal/Alarm N/A

39 Ala (High Supply Temp) For LCD Event Signal Only MSV 17290 Normal/Alarm N/A

39 Ala (A Cir 2) For LCD Event Signal Only MSV 17293 Normal/Alarm N/A

39 Norm (A Cir 2) For LCD Event Signal Only MSV 17294 Normal/Alarm N/A

39 Ala (Frost) For LCD Event Signal Only MSV 17316 Normal/Alarm N/A

40 Norm (Frost) For LCD Event Signal Only MSV 17317 Normal/Alarm N/A

40 Ala (XBC Sensor Fault) For LCD Event Signal Only MSV 17320 Normal/Alarm N/A

40 Norm (XBC Sensor Fault) For LCD Event Signal Only MSV 17321 Normal/Alarm N/A

40 SW-FAC2612-2-4A Strategy Version MSV 17340 On/Off Off

41 Event Log N/A


12.1 SUPPLYThe control is powered by a 240VAC supply. This must be isolated local to the unit and fitted with

appropriate overcurrent and fault protection.

ELECTRIC HEATER SUPPLYFor models with electric heating, the heating circuit is powered by a separate, higher current, 240VAC

supply. This must be isolated local to the unit and fitted with appropriate overcurrent protection. The main

supply is still required.

*Electric Heater models require two separate supplies, each with an appropriate overcurrent current

protection device.

12.2 VOLT FREE CONTACTSNote that the volt free contacts are not fused. If these are used to power any external equipment, the

installer must provide adequate fusing or other protections.

These contacts are rated at 3A resistive, 0.5A inductive.

Run connections - The relay is powered when the fan is running. (These contacts are used when an I/O

damper is installed. See damper section 5.2 for details)

Fault connections - No fault = the relay is powered.

Fault = the relay is unpowered.

Heat demand - the relay is powered when heating is selected.

Cool demand - the relay is powered when cooling is selected.

12.3 SWITCHED LIVESwitch Live (SL) terminal - A signal of 100-230V a.c. will activate the switched live signal.

Switch Live 2 (SL2) terminal - A signal of 100-230V a.c. will activate the switched live 2 (Fan Boost) signal.

Note that a signal from an isolating transformer will produce an unpredictable result and is not

recommended.

Volt free versions of the switched live signals are also available at terminals T33-T34 & T35-T36. Link two

contacts to activate the signal.

12.4 DAMPER CONNECTIONSA fan start delay can be imposed to allow the damper time to open. This is adjustable via display screens or

commissioning tools.

If an I/O damper is fitted, it must be wired to the fan run relay, and the relay supplied with the relevant

supply voltage.

See I/O Damper connection diagram for details.

12.5 NETWORK SETTINGS


12.0 ELECTRICAL DETAILS

ELECTRICAL SUPPLY DETAILS

Unit Main Circuit Electric Heater Circuit (FLC) Code (FLC) (Electric Models Only*)

XBC10-H-*CO 3.2 A 13 A

XBC15-H-*CO 4.5 A 13 A

XBC25-H-*CO 8 A 19 A




The electrical wiring must

be carried out by competent

persons, in accordance with good

industry practice and should

conform to all governing

and statutory bodies

i.e. IEE, CIBSE, COHSE etc.

Default MS/TP Address: 4

BACnet Instance Number: Randomised &

Unique for each controller (0 to 4,194,304)

(MS/TP)

46


12.0 ELECTRICAL DETAILS

12.6 CONNECTION CHART

Description Controller Din Rail Relay

Terminal No Terminal No DI AI Output AO

Fresh Air Sensor IN 1 1

Supply Air Sensor IN2 1

Return/Room Air Sensor IN3 25-26 1

Input 4 IN4 1

Input 5 IN5 31-32 1

Alarm Circuit 1 (Fan, Heater) IN6 27-28 (Some Models) 1

Alarm Circuit 2 (Pump, Filter) IN7 29-30 1

Volt-Free Enable Input Signal IN8 33-34 1

Volt-Free Boost Input Signal IN9 35-36 1

Extract Fan 0-10V OUT1 1

Supply Fan 0-10V OUT2 1

Heat Demand 0-10V OUT3 1

Cool Demand 0-10V OUT4 1

Bypass Damper Relay OUT5 1

Volt-Free Healthy Relay OUT6 1

Volt-Free Fan Run Relay OUT7 1

Volt-Free Cool Demand Relay OUT8 1

Volt-Free Heat Demand Relay OUT9 1

230V Enable Input 10 1

230V Fan Boost Input 11 1

(MS/TP)

47nuaire.co.uk


12.0 ELECTRICAL DETAILS12.7 TERMINALS - WIRE CONNECTIONS

Figure 31: This control unit utilises WAGO’s CAGE CLAMP®S terminal blocks, allowing for quick and easy connection.

30. 11. 15. Leaflet Number 671710

JUMPERS - Terminal blocks can be commoned together to increase the number of terminals at the same

potential using push-in jumpers. In these cases the terminals are treated as one conductor.

JUMPER REMOVED - Insert the operating toolblade between the jumper and the partition wall

of the dual jumper slots, then lift up the jumper.

PUSH IN TERMINATION - Stripped solid

conductors, fine-stranded conductors with

ferrules, or ultrasonically “bonded” conductors are

simply pushed in until they hit the backstop.

No tool required.

TERMINATION OF FINE-STRANDEDCONDUCTORS - Open the clamp by inserting

an operating tool (as shown below) until it clicks

into position. Then insert the conductor and

remove the operating tool to complete the

connection.

CONDUCTOR REMOVAL - Insert an operatingtool in to the operating slot to remove the

conductor, just like the original CAGE CLAMP®

terminal blocks.

DOUBLE DECK TERMINAL BLOCK - Each deck has a different potential (2-conductor), which createsa space saving on the rail. Decks can be commoned to adjacent terminal blocks and/or the top to the

bottom deck.

EARTH TERMINAL BLOCKS - The earthterminal block (green/yellow) has a direct

electrical connection to the DIN rail, with the

earthing foot (earth connection only).

FUSE TERMINALS - Replaceable cartridge fuses

are housed in quick release fuse terminals.

029 2085 820048


Extract (Option 2)

Supply

Extract (Option 1)

Discharge

Inlet (Option 1)

Inlet (Option 2)

KEY TO HARDWARE POSITIONSA) Supply fan (drive & health)

B) Delivery air temperature sensor

C) Extract air temperature sensor

D) Re-heater trip (electric heater models only)

E) LPHW re-heat drive (LPHW models only)

F) Bypass damper drive

G) Condensate pump alarm

H) Fresh air temperature

I) Extract fan (drive & health)

Figure 32: XBC unit plan view.

A

C

B

D

E

G

F

H I

13.0 DIAGRAMS13.1 HARDWARE POSITIONS ON THE UNIT



13.0 DIAGRAMS13.2 I/O DAMPER CONNECTION 24V ACTUATOR VERSION (XBC15-MD-CO)

Figure 33:

029 2085 820050


Figure 34:

13.0 DIAGRAMS13.3 BASIC CONNECTION DIAGRAM

51nuaire.co.uk


30. 11. 15. Leaflet Number 671710

029 2085 820052


Figure 35:

13.0 DIAGRAMS13.4 PHYSICAL LAYOUT

53nuaire.co.uk


30. 11. 15. Leaflet Number 671710

029 2085 820054


13.0 DIAGRAMS13.5 XBC10-15 (NO HEATER / LPHW)

Figure 36:

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30. 11. 15. Leaflet Number 671710

029 2085 820056


13.0 DIAGRAMS13.6 XBC25-65 (NO HEATER / LPHW)

Figure 37:

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30. 11. 15. Leaflet Number 671710

029 2085 820058


13.0 DIAGRAMS13.7 XBC10-15 (ELECTRIC HEATER VERSION)

Figure 39:

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30. 11. 15. Leaflet Number 671710

029 2085 820060


13.0 DIAGRAMS13.8 XBC25-65 (ELECTRIC HEATER VERSION)

Figure 40:

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30. 11. 15. Leaflet Number 671710

029 2085 820062

Isolation - Before commencing work make sure that the unit and Nuaire control are electrically isolated

from the mains supply.


14.0 MAINTENANCEIt is recommended that PPE is always used during the maintenance of Air

Handling Equipment – gloves, eye shields and respiratory mask.

In some Ecosmart units and in some third party controls, variable speed

drives (inverters) are used to provide fan speed control. After the fan is

isolated, allow at least 5 minutes for the capacitors in the inverter to

discharge before commencing any work on the unit.

14.1 DAMPERSAt regular intervals check that the blades move freely.

14.2 FILTERS (4 X G4 FITTED AS STANDARD)Disposable filters should be changed when an appropriate

pressure drop is achieved.

14.3 HEATING COILSCoils should have their finned surface examined for accumulation of dirt, lint

and biological contaminants or similar.

If necessary, wash down affected areas with a mild detergent solution and a

soft brush. Care should be taken not to damage the finned surface, and any

cleaning fluids should be rinsed away with water.

A compressed air line may be used to blow out any solids between fins. Do

not probe the coil fin block with metal objects as damage may cause leaks.

Drain lines should be checked to ensure that they are unobstructed and free

draining.

Drain pans should be flushed out periodically to remove contamination.

Note: The unit application may require particular attention to this item –

Check with Building Management personnel for details.

14.4 COUNTERFLOW PLATE HEAT EXCHANGERThe heat exchanger block is normally protected from dust and

contamination by upstream pre-filters. It is possible to clean the unit with

compressed air in the case of dust deposits or by spraying with a mild

detergent solution for grease deposits. Solvents, strong alkaline, acidic or any

products that may be aggressive to aluminium should not be used. Do not

use cleaning water over 50 deg C.

Drain lines should be checked to ensure that they are unobstructed and free

draining. Traps should be checked that they are fully primed and functioning.

Drain pans should be flushed out periodically to remove

contamination, and chemical treatments may be used to provide protection

between service visits.

Note: The unit application may require particular attention to this item –

Check with Building Management personnel for details.

14.5 FANS AND MOTORSFan bearings should be manually checked at regular intervals for condition.

Standard fan bearings are supplied as ‘sealed for life’ and have an anticipated

life of 40,000 hours.

Motors have an enclosed bearing housing and are pre-greased

for life. Check all fixings are secure.

14.6 GENERALInspect all internal and external surfaces to check for corrosion or peeling of

painted surfaces.

Thoroughly clean affected areas with a wire brush, apply a coat of zinc rich

primer or similar, and re-touch with suitable finishing paint. Ensure tightness

of all nuts, bolts, and fixings.

Check all components for general condition.

15.0 SERVICE SCHEDULETypical–will depend on site conditions.

6 MONTHS 12 MONTHS

G4 FILTERS 4 or 4

F7 FILTERS 4

DAMPERS 4

DAMPER ACTUATORS 4

VENT WATER COILS 4

COIL FINNED SURFACES 4

CHECK DRAIN LINES + DRIP TRAY 4 4

CLEAN DRAIN PANS Building

Schedule ? 4

NUTS, BOLTS, FIXINGS SECURE 4

FAN BEARINGS 4

ELECTRIC HEATERS 4

ELECTRICAL WIRING 4

FAN IMPELLER 4

GENERAL 4

16.0 WARRANTY5 year warranty on ECOSMART (CO) models for peace of mind.

The warranty starts from the day of delivery and includes parts and labour

for the first year.

The remaining period covers replacement parts only.

This warranty is void if the equipment is modified without authorisation, is

incorrectly applied, misused or not installed

commissioned and maintained in accordance with the details

contained in this manual and general good practice.

If control software is modified or removed

Nuaire will accept warranty on the hardware (unit) provided the replacement

does not control the unit beyond its specified limits (refer to Nuaire testing

standards and Application Guidance Notes document NA-QS-W029-3 which

can be found on our website www.nuaire.co.uk)

17.0 SPARESSpare parts and replacement components, and general advice are available

from the Nuaire Ltd Service department.

TELEPHONE 029 2085 8400FAX 029 2085 8444

63nuaire.co.uk

Technical or commercial considerations may, from time to time, make it necessary to alter the design, performance and dimensions of equipment and the right is reserved to make such changes without prior notice.

DECLARATION OF INCORPORATION AND INFORMATION FOR SAFE INSTALLATION, OPERATION AND MAINTENANCE


18.0 CERTIFICATION

We declare that the machinery named below is intended to be assembled withother components to constitute a system of machinery. All parts except for moving parts requiring the correct installation of safety guards complywith the essential requirements of the Machinery Directive. The machinery shall not be put into service until the system has been declared to be in conformity with the provisions of the EC Machinery Directive.

Designation of machinery: XBOXER XBC Ecosmart Connect models (CO)

Machinery Types: Supply & Extract fans with Heat Recovery

Relevant EC Council Directives: 2006/42/EC (Machinery Directive)

Applied Harmonised Standards: BS EN ISO 12100, BS EN ISO 13857 EN60204-1, BS EN ISO 9001

Applied National Standards: BS848 Parts 1, 2.2 and 5

Note: All standards used were current and valid at the date of signature.

Signature of manufacture representatives:Name: Position: Date:

1) C. Biggs Technical Director 02. 11. 15

2) A. Jones Manufacturing Director 02. 11. 15

INFORMATION FOR SAFE INSTALLATION, OPERATION AND MAINTENANCE OF NUAIRE VENTILATION EQUIPMENT

To comply with EC Council Directives 2006/42/EC’ Machinery Directive and 2004/108/EC (EMC).

To be read in conjunction with the relevant Product Documentation (see 2.1)

1.0 GENERAL

1.1 The equipment referred to in this Declaration of Incorporation is supplied by Nuaire to be assembled into a ventilation system which may or may not include additional components.

The entire system must be considered for safety purposes and it is the responsibility of the installer to ensure that all of the equipment is installed in compliance with the manufacturers recommendations and with due regard to current legislation and codes of practice.

2.0 INFORMATION SUPPLIED WITH THE EQUIPMENT

2.1 Each item of equipment is supplied with a set of documentation which provides the information required for the safe installation and maintenance of the equipment. This may be in the form of a Data sheet and/or Installation and Maintenance instruction.

2.2 Each unit has a rating plate attached to its outer casing. The rating plate provides essential data relating to the equipment such as serial number, unit code and electrical data. Any further data that may be required will be found in the documentation. If any item is unclear or more information is required, contact Nuaire.

2.3 Where warning labels or notices are attached to the unit the instructions given must be adhered to.

3.0 TRANSPORTATION, HANDLING AND STORAGE

3.1 Care must be taken at all times to prevent damage to the equipment. Note that shock to the unit may result in the balance of the impeller being affected.

3.2 When handling the equipment, care should be taken with corners and edges and that the weight distribution within the unit is considered. Lifting gear such as slings or ropes must be arranged so as not to bear on the casing.

3.3 Equipment stored on site prior to installation should be protected from the weather and steps taken to prevent ingress of contaminants.

4.0 OPERATIONAL LIMITS

4.1 It is important that the specified operational limits for the equipment are adhered to e.g. operational air temperature, air borne contaminants and unit orientation.

4.2 Where installation accessories are supplied with the specified equipment eg. wall mounting brackets. They are to be used to support the equipment only. Other system components must have separate provision for support.

4.3 Flanges and connection spigots are provided for the purpose of joining to duct work systems. They must not be used to support the ductwork.

4.4 Local Environment - Humidity. Ambient humidity (the humidity at the unit’s installed location) shall be within the range: 10 to 95% (for controls, non-condensing). Air humidity (the humidity of the air passing through the unit) shall be within the range: 10 to 95% (for controls, non-condensing).

5.0 INSTALLATION REQUIREMENTS

In addition to the particular requirements given for the individual product, the following general requirements should be noted.

5.1 Where access to any part of equipment which moves, or can become electrically live are not prevented by the equipment panels or by fixed installation detail (eg ducting), then guarding to the appropriate standard must be fitted.

5.2 The electrical installation of the equipment must comply with the requirements of the relevant local electrical safety regulations.

5.3 For EMC all control and sensor cables should not be placed within 50mm or on the same metal cable tray as 230V switched live, lighting or power cables and any cables not intended for use with this product.

6.0 COMMISSIONING REQUIREMENTS

6.1 General pre-commissioning checks relevant to safe operation consist of the following:

Ensure that no foreign bodies are present within the fan or casing.

Check electrical safety. e.g. Insulation and earthing.

Check guarding of system.

Check operation of Isolators/Controls.

Check fastenings for security.

6.2 Other commissioning requirements are given in the relevant product documentation.

7.0 OPERATIONAL REQUIREMENTS

7.1 Equipment access panels must be in place at all times during operation of the unit, and must be secured with the original fastenings.

7.2 If failure of the equipment occurs or is suspected then it should be taken out of service until a competent person can effect repair or examination. (Note that certain ranges of equipment are designed to detect and compensate for fan failure).

8.0 MAINTENANCE REQUIREMENTS

8.1 Specific maintenance requirements are given in the relevant product documentation.

8.2 It is important that the correct tools are used for the various tasks required.

8.3 If the access panels are to be removed for any reason the electrical supply to the unit must be isolated.

8.4 A minium period of two minutes should be allowed after electrical disconnection before access panels are removed. This will allow the impeller to come to rest.

NB: Care should still be taken however since airflow generated at some other point in the system can cause the impeller to “windmill” even when power is not present.

8.5 Care should be taken when removing and storing access panels in windy conditions.

30. 11. 15. Leaflet Number 671710

NUAIRE LIMITED

Western Industrial Estate | Caerphilly | CF83 1NA

t +44 (0)29 2085 8200 | f +44 (0)29 2085 8222 | e [email protected]

www.nuaire.co.uk

As part of our policy of continuous product development Nuaire reserves the right to alter specifications without prior notice.Telephone calls may be recorded for quality and training purposes.

FOR MORE INFORMATION

www.nuaire.co.uk

COMMERCIAL

www.nuaire.co.uk/commercial

AIR HANDLING UNITS

www.nuaire.co.uk/boxerahu

30. 11. 15. Leaflet Number 671710

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